C.R.S. Section 42-4-306
Powers and duties of commission

  • automobile inspection and readjustment program
  • basic emissions program
  • enhanced emissions program
  • clean screen program

(1)

The commission shall develop and evaluate motor vehicle inspection and readjustment programs for the enhanced program area and basic program area and may promulgate such regulations as may be necessary to implement and maintain the necessary performance of said programs consistent with the federal act.

(2)

The commission shall develop and formulate training and qualification programs for state-employed motor vehicle emissions compliance officers to include annual auditor proficiency evaluations.
(3)(a)(I)(A) The commission shall promulgate rules and regulations for the training, testing, and licensing of emissions inspectors and emissions mechanics and the licensing of inspection and readjustment stations, inspection-only facilities, fleet inspection stations, motor vehicle dealer test facilities, and the authorization of enhanced inspection centers; the standards and specifications for the approval, operation, calibration, and certification of exhaust gas and evaporative emissions measuring instrumentation or test analyzer systems; and the procedures and practices to ensure the proper performance of inspections, adjustments, and required repairs.

(B)

Specifications adopted by the commission for exhaust gas measuring instrumentation in the program areas shall conform to the federal act and federal requirements, including electronic data transfer, and may include bar code capabilities.

(C)

Upon the adoption of specifications for measuring instruments and test analyzer systems, the division in consultation with the executive director may let bids for the procurement of instruments that meet federal requirements or guidelines and the standards of the federal act. The invitation for bids for test analyzer systems for the basic program and the inspection-only facilities in the enhanced program shall include, but shall not be limited to, the requirements for data collection and electronic transfer of data as established by the commission, service and maintenance requirements for such instruments for the period of the contract, requirements for replacement or loan instruments in the event that the purchased or leased instruments do not function, and the initial purchase or lease price. On and after June 5, 2001, each contract for the purchase of such instruments shall have a term of no more than four years.

(II)

Points of no greater than five percent shall be assigned to those respondents that make the greatest use of Colorado goods, services, and the participation of small business. Licensed inspection and readjustment stations, inspection-only facilities, fleet inspection stations, and motor vehicle dealer test facilities, if applicable, which are required to purchase commission-approved test analyzer systems shall purchase them pursuant to the bid procedure of the department of personnel.

(III)

Mobile test analyzer systems for motor vehicle dealer test facilities shall comply with commission specifications developed pursuant to subparagraph (I) of this paragraph (a).

(b)

Intentionally left blank —Ed.

(I)

For the enhanced emissions program, the commission shall develop system design standards, performance standards, and contractor requirements. Upon the adoption of such criteria, the division in consultation with the executive director may, according to procedures and protocol established in the “Procurement Code”, articles 101 to 112 of title 24, C.R.S., enter into a contract for the design, construction, equipment, maintenance, and operation of enhanced inspection centers to serve affected motorists. The criteria for the award of such contract shall include, but shall not be limited to, such criteria as the contractor’s qualifications and experience in providing emissions inspection services, financial and personnel resources available for start-up, technical or management expertise, and capacity to satisfy such requirements for the life of the contract.

(II)

Inspection procedures, equipment calibration and maintenance, and data storage and transfer shall comply with federal requirements and may include bar code capability. The system shall provide reasonable convenience to the public.

(III)

Points of no greater than five percent shall be assigned to those respondents who make the greatest use of Colorado goods, services, and participation of small businesses.

(IV)

On and after May 26, 1998, any contract for inspection services shall have a term of no more than five years and shall be subject to rebidding under the provisions of this paragraph (b).

(V)

Intentionally left blank —Ed.

(A)

Notwithstanding any contrary provision in the “Procurement Code”, articles 101 to 112 of title 24, C.R.S., or this article, any contract for inspection services may be renewed for a term not to exceed two years, after which the contract may be renewed for a single term of up to four years or rebid; except that inspection fees during any such four-year renewal contract shall be as determined under section 42-4-311 (6).

(B)

The commission shall have rule-making authority to implement any environmental protection agency-approved alternative emissions inspection services or technologies, including on-board diagnostics, so long as such inspection technologies provide SIP credits equal to or greater than those currently in the SIP.

(4)

Intentionally left blank —Ed.

(a)

The commission shall develop a program to train and examine all applicants for an emissions inspector or emissions mechanic license. Training of emissions inspectors who are employed at enhanced inspection centers within the enhanced emissions program area shall be administered by the contractor subject to the commission’s oversight. Emissions mechanic training shall be performed by instructors certified in accordance with commission requirements. Training classes shall be funded by tuition charged to the participants unless private or federal funds are available for such training. The qualifications and licensing examination for emissions inspectors, excluding such inspectors at enhanced inspection centers, who shall be authorized by and under the direction of the contractor, shall include a test of the applicant’s knowledge of the technical and legal requirements for emissions testing, knowledge of data and emissions testing systems, and an actual demonstration of the applicant’s ability to perform emissions inspection procedures.

(b)

Emissions inspector and emissions mechanic licenses shall expire two years after issuance. The commission shall establish technical standards for renewing emissions inspector and emissions mechanic licenses to include requirements for retraining on a biennial schedule.

(c)

The commission shall establish minimum performance criteria for licensed emissions inspectors and emissions mechanics.

(5)

The commission shall perform its duties, as provided in sections 42-4-301 to 42-4-316, with the cooperation and aid of the division.

(6)

Intentionally left blank —Ed.

(a)

The commission shall develop and adopt, and may from time to time revise, regulations providing inspection procedures for detection of tampering with emissions-related equipment and on-board diagnostic systems and emissions standards for vehicle exhaust and evaporative gases, the detection of chlorofluorocarbons, and smoke opacity, as prescribed in section 42-4-412, with which emissions standards vehicles inspected in accordance with section 42-4-310 would be required to comply prior to issuance of certification of emissions compliance. Such inspection procedures and emissions standards shall be proven cost-effective and air pollution control-effective on the basis of detailed research conducted by the department of public health and environment in accordance with section 25-7-130, C.R.S., and shall be designed to assure compliance with the federal act, federal requirements, and the state implementation plan. Emissions standards shall be established for carbon monoxide, exhaust and evaporative hydrocarbons, oxides of nitrogen, and chlorofluorocarbons.

(b)

Intentionally left blank —Ed.

(I)

The commission shall adopt regulations which provide standards for motor vehicles and shall adopt by December 1 of each subsequent year standards for motor vehicles of one additional model year.

(II)

Standards for carbon monoxide, exhaust and evaporative hydrocarbons, and oxides of nitrogen shall be no more stringent than those established pursuant to the federal act and federal requirements. The cut-points established for such standards prior to December 1, 1998, shall not be increased until on or after January 1, 2000.

(c)

Repealed.

(d)

Test procedures may authorize emissions inspectors or emissions mechanics to refuse testing of a vehicle that would be unsafe to test or that cannot physically be inspected, as specified by the commission; except that refusal to test a vehicle for such reasons shall not excuse or exempt such vehicle from compliance with all applicable requirements of this part 3.

(7)

Intentionally left blank —Ed.

(a)

The commission shall by regulation require the owner of a motor vehicle for which a certification of emissions control is required to obtain such certification. Such regulation shall provide:

(I)

That a certification of emissions compliance be issued for the vehicle if, at the time of inspection or, after completion of required adjustments or repairs, the exhaust and evaporative gases and visible emissions from said vehicle comply with the applicable emissions standards adopted pursuant to subsection (6) of this section, and that applicable emissions control equipment and diagnostic systems are intact and operable, and, for model year 1995 and later vehicles, compliance with each applicable emissions-related recall campaign, or remedial action, as defined by the federal act, has been demonstrated.

(II)

Intentionally left blank —Ed.

(A)

That a certification of emissions waiver be issued for the motor vehicle if, at the time of inspection, the exhaust gas or evaporative emissions from said vehicle do not comply with the applicable emissions standards but said vehicle is adjusted or repaired by a registered repair technician or at a registered repair facility within the enhanced program area, or at a licensed inspection and repair station within the basic program area, whichever is appropriate, to motor vehicle manufacturer specifications and repair procedures as provided by regulation of the commission.

(B)

Such specifications shall require that such motor vehicles be retested for exhaust gas emissions and evaporative emissions, if applicable, after such adjustments or repairs are performed, but, except as provided in section 42-4-310 (1)(d), no motor vehicle shall be required to receive additional repairs, maintenance, or adjustments beyond such specifications or repairs following such retest as a condition for issuance of a certification of emissions waiver.

(C)

A time extension not to exceed the period of one inspection cycle may be granted in accordance with commission regulation to obtain needed repairs on a vehicle in the case of economic hardship when waiver requirements pursuant to commission regulation have not been met, but such extension may be granted only once per vehicle.

(D)

Notwithstanding any provisions of this section, a temporary certificate of emissions control may be issued by state AIR program personnel for vehicles required to be repaired, if such repairs are delayed due to unavailability of needed parts.

(E)

The results of the initial test, retests, and final test shall be given to the owner of the motor vehicle.

(F)

The issuance of temporary certificates shall be entered into the main computer database for the AIR program through the use of electronic records.

(G)

The commission is authorized to reduce the emissions-related repair expenditure limit established in section 42-4-310 (1)(d)(III) for hydrocarbons and oxides of nitrogen if applicable federal requirements are met, and the environmental protection agency has approved a maintenance plan submitted by the state to ensure continued compliance with such federal requirements.

(b)

Intentionally left blank —Ed.

(I)

The commission shall by regulation provide that no vehicle shall be issued a certificate of emissions compliance or waiver if emissions control equipment and diagnostic or malfunction indicator systems, including microprocessor control systems, are not present, intact, and operational, if repairs were not appropriate and did not address the reason for the emissions failure, or if the vehicle emits visible smoke.

(II)

The commission shall provide by regulation that no model year 1995 or later vehicle shall be issued a certificate of emissions control unless compliance with each applicable emissions-related recall campaign or remedial action, as defined in the federal act, has been demonstrated.

(8)

Intentionally left blank —Ed.

(a)

The commission may exempt motor vehicles of any make, model, or model year from the periodic inspection requirements of section 42-4-310.

(b)

Pursuant to section 42-4-310 (1), the commission may increase the effective duration of certifications of emissions compliance issued for new motor vehicles without inspection.
(9)(a)(I) The commission shall continuously evaluate the entire AIR program to ensure compliance with the state implementation plan and federal law. Such evaluation shall be based on continuing research conducted by the department of public health and environment in accordance with section 25-7-130, C.R.S. Such evaluation shall include assessments of the cost-effectiveness and air pollution control-effectiveness of the program.

(II)

The commission shall establish on a case-by-case basis and pursuant to final order any area of a county included in the basic emissions program area pursuant to section 42-4-304 (2) which shall be incorporated into the enhanced emissions program because it violates national ambient air quality standards on or after January 1, 1996, as established by the environmental protection agency.

(b)

Such evaluation shall include a determination of the number of motor vehicles that fail to meet the applicable emissions standards after the adjustments and repairs required by subsection (7) of this section are made. If the commission finds that a significant number of motor vehicles do not meet the applicable emissions standards after such adjustments or repairs are made, the commission shall develop recommendations designed to improve the air pollution control-effectiveness of the program in a cost-effective manner.

(c)

The evaluation shall also include an assessment of the methods of controlling or reducing exhaust gas emissions from motor vehicles of the model year 1981 or a later model year that are equipped with microprocessor-based emissions control systems and on-board diagnostic systems. Such evaluation shall include, if necessary for such motor vehicles, the development of more accurate alternative procedures to include the adjustments and repairs specified in subparagraph (II) of paragraph (a) of subsection (7) of this section, and such alternative procedures may require the replacement of inoperative or malfunctioning emissions control components. Such alternative procedures shall be designed to achieve control of emissions from such motor vehicles which is equivalent to or greater than the control performance level provided by performance standards established pursuant to the federal act.

(d)

Such evaluation shall also include an annual assessment of in-use vehicle emissions performance levels by random testing of a representative sample of at least one-tenth of one percent of the vehicles subject to the enhanced emissions program requirements.

(10)

The commission shall develop and implement, and shall revise as necessary, inspection procedures to detect tampering, poor maintenance, mis-fueling, and contamination of emissions control systems to include proper operation of on-board diagnostic systems.

(11)

Intentionally left blank —Ed.

(a)

The commission, with the cooperation of the department of public health and environment, the department of revenue, the contractor, and the owners or operators of the inspection and readjustment stations, inspection-only facilities, and motor vehicle dealer test facilities, shall implement an ongoing project designed to inform the public concerning the operation of the program and the benefits to be derived from such program.

(b)

Intentionally left blank —Ed.

(I)

The commission shall, as part of such project and with the cooperation of the department of public health and environment, the department of revenue, the contractor, and the owners or operators of the inspection and readjustment stations and inspection-only facilities prepare and cause the distribution of consumer protection information for the benefit of the owners of vehicles required to be inspected pursuant to section 42-4-310.

(II)

This information shall include an explanation of the program, the owner’s responsibilities under the program, the procedures to be followed in performing the inspection, the adjustments and repairs required for vehicles to pass inspection, cost expenditure limits pursuant to section 42-4-310 (1)(d) for such adjustments or repairs, the availability of diagnostic information to aid repairs, and a listing of registered repair facilities and technicians, and the package may include information on other aspects of the program as the commission determines to be appropriate.

(c)

In addition to distribution of such information, the commission shall actively seek the assistance of the electronic and print media in communicating such information to the public and shall utilize such other means and manners of disseminating the information as are likely to effectuate the purpose of the program.

(12)

Intentionally left blank —Ed.

(a)

The commission, with the cooperation of the executive director of the department of public health and environment, shall conduct or cause to be conducted research concerning the presence of pollutants in the ambient air, which research shall include continuous monitoring of ambient air quality and modeling of sources concerning their impacts on air quality. Such research shall identify pollutants in the ambient air which originate from motor vehicle exhaust gas emissions and shall identify, quantify, and evaluate the ambient air quality benefit derived from the automobile inspection and readjustment program, from the federal new motor vehicle exhaust emissions standards, and from changes in vehicle miles traveled due to economic or other factors. Each such evaluation shall be reported separately to assess the air pollution control-effectiveness and cost-effectiveness of the pollution control strategy.

(b)

Repealed.

(13)

The commission shall identify vehicle populations contributing significantly to ambient pollution inventories utilizing mobile source computer models approved by the environmental protection agency. The commission shall develop and implement more stringent or frequent, or both, inspection criteria for those vehicles with such significant pollution contributions.

(14)

Intentionally left blank —Ed.

(a)

Consistent with section 42-4-305, the commission shall promulgate technical rules and regulations governing quality control and audit procedures to be performed by the department of revenue as provided in section 42-4-305. Such regulations shall address all technical aspects of program oversight and quality assurance to include covert and overt performance audits and state implementation plan compliance.

(b)

To ensure compliance with the state implementation plan and federal requirements the commission shall promulgate technical rules and regulations to address motor vehicle fleet and motor vehicle dealer inspection protocol and quality control and audit procedures.

(15)

The commission shall provide for additional enforcement of the inspection programs by encouraging the adoption of local ordinances and active participation by local law enforcement personnel, parking control, and code enforcement officers against vehicles suspected to be out of compliance with inspection requirements.
(16)(a)(I) The commission shall promulgate rules and regulations governing the issuance of emissions-related repair waivers consistent with section 42-4-310.

(II)

Within the enhanced program area waivers shall only be issued by authorized state personnel and enhanced inspection center personnel specifically authorized by the executive director.

(b)

The issuance of all waivers shall be controlled and accountable to the main computer database for the AIR program by electronic record to ensure that maximum allowable waiver rate limits for both program types, as defined by the federal act, are not exceeded.

(17)

For the enhanced emissions program, the commission shall promulgate rules and regulations establishing a network of enhanced inspection centers and inspection-only facilities within the enhanced emissions program area consistent with the following:

(a)

Intentionally left blank —Ed.

(I)

Owners, operators, and employees of enhanced inspection centers and independent inspection-only facilities within the enhanced program area are prohibited from engaging in any motor vehicle repair, service, parts sales, or the sale or leasing of motor vehicles and are prohibited from referring vehicle owners to particular providers of motor vehicle repair services; except that minor repair of components damaged by center or facility personnel during inspection at the center or facility, such as the reconnection of hoses, vacuum lines, or other measures pursuant to commission regulation that require no more than five minutes to complete, may be undertaken at no charge to the vehicle owner or operator if authorized.

(II)

The operation of a motor vehicle dealer test facility shall not be considered to be engaging in any motor vehicle repair service, parts sales, or the sale or leasing of motor vehicles by a member of the state trade association operating such motor vehicle dealer test facility.

(b)

Owners, operators, and employees of enhanced inspection centers shall ensure motorists and other affected parties reasonable convenience. Inspection services shall be available prior to, during, and after normal business hours on weekdays, and at least five hours on a weekend day.

(c)

Owners, operators, and employees of enhanced inspection centers shall take appropriate actions, such as opening additional lanes, to avoid exceeding average motorist wait times of greater than fifteen minutes by designing optimized single- or multi-lane high-volume throughput systems.

(d)

Owners or operators of enhanced inspection centers may develop, and are encouraged to develop, and implement alternate strategies including but not limited to off-peak pricing to reduce end-of-the-month wait times.

(e)

The network of enhanced inspection centers shall be located to provide adequate coverage and convenience. At a minimum, the number of enhanced inspection centers shall be equivalent to the network that existed on January 1, 2000, and the hours of operation shall be determined by the contract.

(f)

Within the enhanced emissions program area the commission shall provide for the operation of licensed inspection-only facilities. Applicable facility and inspector licensing, inspection procedures, and criteria shall be pursuant to rule and regulation of the commission and compliance with federal requirements. Inspection-only facilities shall be authorized to provide inspection services for all classes of motor vehicles as defined in section 42-4-304 (18) of the model year 1981 and older. Inspection-only owners or operators, or both, shall comply with paragraph (a) of this subsection (17).

(18)

For the basic emissions program, inspection stations within the basic emissions program area which are licensed in accordance with section 42-4-308 may conduct inspections or provide motor vehicle repairs as well as offer emissions inspection services.

(19)

The commission shall give at least sixty days’ notice to the executive director prior to conducting any rule-making hearing pursuant to this article, except where the commission finds that an emergency exists under section 24-4-103 (6), C.R.S. The executive director shall participate as a party in any such hearing. Prior to promulgating any rule under this article, the commission shall consider the potential budgetary and personnel impacts any such rule may have on the department of revenue.

(20)

Intentionally left blank —Ed.

(a)

The commission shall develop and maintain a small business technical assistance program through the automobile inspection and repair program to provide information and to aid automotive businesses and technicians. As an element of this program, the commission shall develop a voluntary program for the training of registered repair technicians, to be funded by tuition charged to the participants, unless federal or private funds are made available for such training.

(b)

For the enhanced emissions program, the commission shall provide for the voluntary registration of repair facilities and repair technicians within the enhanced emissions program area. Emissions-related repair effectiveness shall be monitored and periodically reported to participating facilities and technicians. Technical assistance shall be provided to those repair technicians and repair facilities needing improvement in repair effectiveness. The commission shall require that emissions-related repair effectiveness information regarding registered repair facilities be made available to the public.

(21)

Intentionally left blank —Ed.

(a)

The commission shall investigate and develop other supplemental or alternative motor vehicle related emissions reduction strategies, including but not limited to “cash for clunkers”, which may complement or enhance the performance of the AIR program. Such strategies must be creditable under the state implementation plan and be proven cost-effective.
(b)(Deleted by amendment, L. 2002, p. 870, § 5, effective August 7, 2002.)(22) The commission shall develop rules and regulations with respect to emissions inspection procedures and standards of motor vehicles which operate on alternative motor fuels including but not limited to compressed natural gas, liquid petroleum gas, methanol, and ethanol. Such rules and regulations shall be developed for both the basic emissions program and the enhanced emissions program. The commission shall evaluate whether dual fuel motor vehicles should be inspected on both fuels and whether such vehicles shall be charged for one or two inspections.

(23)

Intentionally left blank —Ed.

(a)

The commission shall promulgate rules governing the operation of the clean screen program. Such rules shall authorize the division to commence the clean screen program in the basic emissions program area commencing as expeditiously as possible. Such rules shall authorize the division to extend, if feasible, the clean screen program to other parts of the state upon request of the lead air quality planning agencies for each respective area. Such rules shall govern operation of the clean screen program pursuant to the contract or service agreement entered into under section 42-4-307 (10.5). Such rules shall determine the percentage of the vehicle fleet targeted for the clean screen program, which percentage shall develop a target of the eligible vehicle fleet that meets air quality needs. Such rules shall specify emission levels for vehicles in the same manner as for other vehicles in the emissions program. The commission may, upon written request of the Pikes Peak area council of governments, exclude the El Paso county portion of the basic emissions program area from the clean screen program if the department of public health and environment receives written notification from the Pikes Peak area council of governments to such effect by June 1, 2001.

(b)

The rules promulgated pursuant to paragraph (a) of this subsection (23) may also authorize the division to commence the clean screen program in the enhanced emissions program area commencing January 1, 2002, or as soon thereafter as is practical. The clean screen program may be implemented in the enhanced emissions program area only if the commission makes such a determination on or after July 1, 2001.

Source: Section 42-4-306 — Powers and duties of commission - automobile inspection and readjustment program - basic emissions program - enhanced emissions program - clean screen program, https://leg.­colorado.­gov/sites/default/files/images/olls/crs2023-title-42.­pdf (accessed Oct. 20, 2023).

42‑4‑101
Short title
42‑4‑102
Legislative declaration
42‑4‑103
Scope and effect of article - exceptions to provisions
42‑4‑104
Adoption of traffic control manual
42‑4‑105
Local traffic control devices
42‑4‑106
Who may restrict right to use highways - definitions - rules
42‑4‑107
Obedience to police officers
42‑4‑108
Public officers to obey provisions - exceptions for emergency vehicles
42‑4‑109
Low-power scooters, animals, skis, skates, and toy vehicles on highways
42‑4‑109.5
Low-speed electric vehicles
42‑4‑109.6
Class B low-speed electric vehicles - effective date - rules
42‑4‑110
Provisions uniform throughout state - legislative declaration
42‑4‑110.5
Automated vehicle identification systems - legislative declaration - exceptions to liability - penalty - limits on use of photographs and video - definitions
42‑4‑111
Powers of local authorities
42‑4‑112
Noninterference with the rights of owners of realty
42‑4‑113
Appropriations for administration of article
42‑4‑114
Removal of traffic hazards
42‑4‑116
Restrictions for minor drivers - definitions
42‑4‑117
Personal mobility devices
42‑4‑118
Establishment of wildlife crossing zones - report
42‑4‑201
Obstruction of view or driving mechanism - hazardous situation
42‑4‑202
Unsafe vehicles - penalty - identification plates
42‑4‑203
Unsafe vehicles - spot inspections
42‑4‑204
When lighted lamps are required
42‑4‑205
Head lamps on motor vehicles - penalty
42‑4‑206
Tail lamps and reflectors - penalty
42‑4‑207
Clearance and identification
42‑4‑208
Stop lamps and turn signals - penalty
42‑4‑209
Lamp or flag on projecting load
42‑4‑210
Lamps on parked vehicles
42‑4‑211
Lamps on farm equipment and other vehicles and equipment
42‑4‑212
Spot lamps and auxiliary lamps
42‑4‑213
Audible and visual signals on emergency vehicles
42‑4‑214
Visual signals on service vehicles - rules - definition
42‑4‑215
Signal lamps and devices - additional lighting equipment
42‑4‑216
Multiple-beam road lights - penalty
42‑4‑217
Use of multiple-beam lights
42‑4‑218
Single-beam road-lighting equipment
42‑4‑219
Number of lamps permitted
42‑4‑220
Low-power scooters - lighting equipment - department control - use and operation
42‑4‑221
Bicycle, electric scooter, and personal mobility device equipment
42‑4‑222
Volunteer firefighters - volunteer ambulance attendants - special lights and alarm systems
42‑4‑223
Brakes - penalty
42‑4‑224
Horns or warning devices - definition
42‑4‑225
Mufflers - prevention of noise
42‑4‑226
Mirrors - exterior placements
42‑4‑227
Windows unobstructed - certain materials prohibited - windshield wiper requirements
42‑4‑228
Restrictions on tire equipment
42‑4‑229
Safety glazing material in motor vehicles
42‑4‑230
Emergency lighting equipment - who must carry
42‑4‑231
Parking lights
42‑4‑232
Minimum safety standards for motorcycles, autocycles, and low-power scooters
42‑4‑233
Alteration of suspension system
42‑4‑234
Slow-moving vehicles - display of emblem
42‑4‑235
Minimum standards for commercial vehicles - motor carrier safety fund - created - definitions - rules - penalties
42‑4‑236
Child restraint systems required - definitions - exemptions
42‑4‑237
Safety belt systems - mandatory use - exemptions - penalty - definitions
42‑4‑238
Blue and red lights - illegal use or possession
42‑4‑239
Misuse of a wireless telephone - definitions - penalty - preemption
42‑4‑240
Low-speed electric vehicle equipment requirements
42‑4‑241
Unlawful removal of tow-truck signage - unlawful usage of tow-truck signage - definition
42‑4‑242
Automated driving systems - safe harbor
42‑4‑301
Legislative declarations - enactment of enhanced emissions program not waiver of state right to challenge authority to require specific loaded mode transient dynamometer technology in automobile emissions testing
42‑4‑302
Commencement of basic emissions program - authority of commission
42‑4‑304
Definitions relating to motor vehicle inspection and readjustment program
42‑4‑305
Powers and duties of executive director - automobile inspection and readjustment program - basic emissions program - enhanced emissions program - clean screen program - rules
42‑4‑306
Powers and duties of commission - automobile inspection and readjustment program - basic emissions program - enhanced emissions program - clean screen program
42‑4‑307
Powers and duties of the department of public health and environment - division of administration - automobile inspection and readjustment program - basic emissions program - enhanced emissions program - clean screen program
42‑4‑307.5
Clean screen authority - enterprise - revenue bonds
42‑4‑307.7
Vehicle emissions testing - remote sensing
42‑4‑308
Inspection and readjustment stations - inspection-only facilities - fleet inspection stations - motor vehicle dealer test facilities - contractor - emissions inspectors - emissions mechanics - requirements
42‑4‑309
Vehicle fleet owners - motor vehicle dealers - authority to conduct inspections - fleet inspection stations - motor vehicle dealer test facilities - contracts with licensed inspection-only entities
42‑4‑310
Periodic emissions control inspection required
42‑4‑311
Operation of inspection and readjustment stations - inspection-only facilities - fleet inspection stations - motor vehicle dealer test facilities - enhanced inspection centers
42‑4‑312
Improper representation as emissions inspection and readjustment station - inspection-only facility - fleet inspection station - motor vehicle dealer test facility - enhanced inspection center
42‑4‑313
Penalties
42‑4‑314
Automobile emissions control systems - tampering - operation of vehicle
42‑4‑315
Warranties
42‑4‑316
AIR program - demonstration of compliance with ambient air quality standards and transportation conformity
42‑4‑316.5
Termination of vehicle emissions testing program
42‑4‑401
Definitions
42‑4‑402
Administration of inspection program
42‑4‑403
Powers and duties of the commission
42‑4‑404
Powers and duties of the executive director of the department of public health and environment
42‑4‑405
Powers and duties of executive director
42‑4‑406
Requirement of certification of emissions control for registration - testing for diesel smoke opacity compliance
42‑4‑407
Requirements for a diesel emission-opacity inspection - licensure as diesel emissions inspection station - licensure as emissions inspector
42‑4‑408
Operation of diesel inspection station
42‑4‑409
Improper representation of a diesel inspection station
42‑4‑410
Inclusion in the diesel inspection program
42‑4‑411
Applicability of this part to heavy-duty diesel fleets of nine or more
42‑4‑412
Air pollution violations
42‑4‑413
Visible emissions from diesel-powered motor vehicles unlawful - penalty
42‑4‑414
Heavy-duty diesel fleet inspection and maintenance program - penalty - rules
42‑4‑501
Size and weight violations - penalty
42‑4‑502
Width of vehicles
42‑4‑503
Projecting loads on passenger vehicles - penalty
42‑4‑504
Height and length of vehicles
42‑4‑505
Longer vehicle combinations - rules
42‑4‑506
Trailers and towed vehicles
42‑4‑507
Wheel and axle loads
42‑4‑508
Gross weight of vehicles and loads - definition
42‑4‑509
Vehicles weighed - excess removed
42‑4‑510
Permits for excess size and weight and for manufactured homes - rules - definitions
42‑4‑511
Permit standards - state and local
42‑4‑511.2
Authority for cooperative agreements with regional states on excess size or weight vehicles - regulations
42‑4‑512
Liability for damage to highway
42‑4‑601
Department to sign highways, where
42‑4‑602
Local traffic control devices
42‑4‑603
Obedience to official traffic control devices
42‑4‑604
Traffic control signal legend
42‑4‑605
Flashing signals
42‑4‑606
Display of unauthorized signs or devices
42‑4‑607
Interference with official devices
42‑4‑608
Signals by hand or signal device
42‑4‑609
Method of giving hand and arm signals
42‑4‑610
Unauthorized insignia
42‑4‑611
Paraplegic persons or persons with disabilities - distress flag
42‑4‑612
When signals are inoperative or malfunctioning - penalty
42‑4‑613
Failure to pay toll established by regional transportation authority
42‑4‑614
Designation of highway maintenance, repair, or construction zones - signs - increase in penalties for speeding violations
42‑4‑615
School zones - increase in penalties for moving traffic violations
42‑4‑616
Wildlife crossing zones - increase in penalties for moving traffic violations
42‑4‑617
Steep downhill grade zones - increase in penalties and surcharges for speeding violations - definitions
42‑4‑701
Vehicles approaching or entering intersection
42‑4‑702
Vehicle turning left
42‑4‑703
Entering through highway - stop or yield intersection
42‑4‑704
Vehicle entering roadway
42‑4‑705
Operation of vehicle approached by emergency vehicle - operation of vehicle approaching stationary emergency vehicle, stationary towing carrier vehicle, or stationary public utility service vehicle
42‑4‑706
Obedience to railroad signal
42‑4‑707
Certain vehicles must stop at railroad grade crossings - definitions
42‑4‑708
Moving heavy equipment at railroad grade crossing
42‑4‑709
Stop when traffic obstructed
42‑4‑710
Emerging from or entering alley, driveway, or building
42‑4‑711
Driving on mountain highways
42‑4‑712
Driving in highway work area
42‑4‑713
Yielding right-of-way to transit buses - definitions
42‑4‑714
Bicyclist or other authorized user in bicycle lane
42‑4‑715
Yielding right-of-way in roundabouts - definitions
42‑4‑801
Pedestrian obedience to traffic control devices and traffic regulations
42‑4‑802
Pedestrians’ right-of-way in crosswalks
42‑4‑803
Crossing at other than crosswalks
42‑4‑805
Pedestrians walking or traveling in a wheelchair on highways
42‑4‑806
Driving through safety zone prohibited
42‑4‑807
Drivers to exercise due care
42‑4‑808
Drivers and pedestrians, other than persons in wheelchairs, to yield to individuals with disabilities
42‑4‑901
Required position and method of turning
42‑4‑902
Limitations on turning around
42‑4‑903
Turning movements and required signals
42‑4‑1001
Drive on right side - exceptions
42‑4‑1002
Passing oncoming vehicles
42‑4‑1003
Overtaking a vehicle on the left
42‑4‑1004
When overtaking on the right is permitted
42‑4‑1005
Limitations on overtaking on the left
42‑4‑1006
One-way roadways and rotary traffic islands
42‑4‑1007
Driving on roadways laned for traffic
42‑4‑1008
Following too closely
42‑4‑1008.5
Crowding or threatening bicyclist
42‑4‑1009
Coasting prohibited
42‑4‑1010
Driving on divided or controlled-access highways
42‑4‑1011
Use of runaway vehicle ramps
42‑4‑1012
High occupancy vehicle (HOV) and high occupancy toll (HOT) lanes - penalty
42‑4‑1013
Passing lane - definitions - penalty
42‑4‑1101
Speed limits
42‑4‑1102
Altering of speed limits - department to study rural state highways and increase speed limits - definitions
42‑4‑1103
Minimum speed regulation
42‑4‑1104
Speed limits on elevated structures
42‑4‑1105
Speed contests - speed exhibitions - aiding and facilitating - immobilization of motor vehicle - definitions
42‑4‑1106
Minimum speed in left lane - interstate 70
42‑4‑1201
Starting parked vehicle
42‑4‑1202
Parking or abandonment of vehicles
42‑4‑1203
Ski areas to install signs
42‑4‑1204
Stopping, standing, or parking prohibited in specified places - penalty
42‑4‑1205
Parking at curb or edge of roadway
42‑4‑1206
Unattended motor vehicle - definitions
42‑4‑1207
Opening and closing vehicle doors
42‑4‑1208
Reserved parking for persons with disabilities - applicability - rules
42‑4‑1209
Owner liability for parking violations
42‑4‑1210
Designated areas on private property for authorized vehicles
42‑4‑1211
Limitations on backing
42‑4‑1212
Pay parking access for persons with disabilities
42‑4‑1213
Parking in electric motor vehicle charging stations - definition
42‑4‑1301
Driving under the influence - driving while impaired - driving with excessive alcoholic content - definitions - penalties
42‑4‑1301.1
Expressed consent for the taking of blood, breath, urine, or saliva sample - testing - fund - rules - repeal
42‑4‑1301.3
Alcohol and drug driving safety program - definition
42‑4‑1301.4
Useful public service - definitions - local programs - assessment of costs
42‑4‑1302
Stopping of suspect
42‑4‑1303
Records - prima facie proof
42‑4‑1304
Samples of blood or other bodily substance - duties of department of public health and environment - rules
42‑4‑1305
Open alcoholic beverage container - motor vehicle - prohibited
42‑4‑1305.5
Open marijuana container - motor vehicle - prohibited
42‑4‑1306
Colorado task force on drunk and impaired driving - creation - legislative declaration
42‑4‑1307
Penalties for traffic offenses involving alcohol and drugs - legislative declaration - definitions - repeal
42‑4‑1308
Study of devices capable of assessing drug impairment of motorists - report - definition - repeal
42‑4‑1401
Reckless driving - penalty
42‑4‑1402
Careless driving - penalty
42‑4‑1402.5
Vulnerable road user - prohibition - violations and penalties - definition
42‑4‑1403
Following fire apparatus prohibited
42‑4‑1404
Crossing fire hose
42‑4‑1405
Riding in trailers
42‑4‑1406
Foreign matter on highway prohibited - penalty - definitions
42‑4‑1407
Spilling loads on highways prohibited - prevention of spilling of aggregate, trash, or recyclables
42‑4‑1407.5
Splash guards - when required - definition
42‑4‑1408
Operation of motor vehicles on property under control of or owned by parks and recreation districts
42‑4‑1409
Compulsory insurance - penalty - legislative intent
42‑4‑1410
Proof of financial responsibility required - suspension of license
42‑4‑1410.5
Providing false evidence of proof of motor vehicle insurance - penalty
42‑4‑1411
Use of earphones while driving
42‑4‑1412
Operation of bicycles, electric scooters, and other human-powered vehicles
42‑4‑1412.5
Statewide regulation of certain persons approaching intersections who are not operating motor vehicles - status of existing local ordinance or resolution - legislative declaration - definitions
42‑4‑1413
Eluding or attempting to elude a police officer
42‑4‑1414
Use of dyed fuel on highways prohibited
42‑4‑1415
Radar jamming devices prohibited - penalty
42‑4‑1416
Failure to present a valid transit pass or coupon - fare inspector authorization - definitions
42‑4‑1501
Traffic laws apply to persons operating motorcycles and autocycles - special permits
42‑4‑1502
Motorcycles and autocycles - protective helmet
42‑4‑1503
Operating motorcycles and autocycles on roadways laned for traffic
42‑4‑1504
Clinging to other vehicles - penalty
42‑4‑1601
Accidents involving death or personal injuries - duties
42‑4‑1602
Accident involving damage - duty
42‑4‑1603
Duty to give notice, information, and aid
42‑4‑1604
Duty upon striking unattended vehicle or other property
42‑4‑1605
Duty upon striking highway fixtures or traffic control devices
42‑4‑1606
Duty to report accidents
42‑4‑1607
When driver unable to give notice or make written report
42‑4‑1608
Accident report forms
42‑4‑1609
Coroners to report
42‑4‑1610
Reports by interested parties confidential
42‑4‑1611
Tabulation and analysis of reports
42‑4‑1612
Accidents in state highway work areas
42‑4‑1701
Traffic offenses and infractions classified - penalties - penalty and surcharge schedule - repeal
42‑4‑1702
Alcohol- or drug-related traffic offenses - collateral attack
42‑4‑1703
Parties to a crime
42‑4‑1704
Offenses by persons controlling vehicles
42‑4‑1705
Person arrested to be taken before the proper court
42‑4‑1706
Juveniles - convicted - arrested and incarcerated - provisions for confinement
42‑4‑1707
Summons and complaint or penalty assessment notice for misdemeanors, petty offenses, and misdemeanor traffic offenses - release - registration
42‑4‑1708
Traffic infractions - proper court for hearing, burden of proof - appeal - collateral attack
42‑4‑1709
Penalty assessment notice for traffic infractions - violations of provisions by officer - driver’s license - definition
42‑4‑1710
Failure to pay penalty for traffic infractions - failure of parent or guardian to sign penalty assessment notice - procedures
42‑4‑1711
Compliance with appearance
42‑4‑1712
Procedure prescribed not exclusive
42‑4‑1713
Conviction record inadmissible in civil action
42‑4‑1714
Traffic violation not to affect credibility of witness
42‑4‑1715
Convictions, judgments, and charges recorded - public inspection
42‑4‑1716
Notice to appear or pay fine - failure to appear - penalty - definition
42‑4‑1717
Conviction - attendance at driver improvement school - rules
42‑4‑1718
Electronic transmission of data - standards
42‑4‑1719
Violations - commercial driver’s license - compliance with federal regulation
42‑4‑1801
Legislative declaration
42‑4‑1802
Definitions
42‑4‑1803
Abandonment of motor vehicles - public property
42‑4‑1804
Report of abandoned motor vehicles - owner’s opportunity to request hearing
42‑4‑1805
Appraisal of abandoned motor vehicles - sale
42‑4‑1806
Liens upon towed motor vehicles
42‑4‑1807
Perfection of lien
42‑4‑1808
Foreclosure of lien
42‑4‑1809
Proceeds of sale
42‑4‑1810
Transfer and purge of certificates of title
42‑4‑1811
Penalty
42‑4‑1812
Exemptions
42‑4‑1813
Local regulations
42‑4‑1814
Violation of motor vehicle registration or inspection laws - separate statutory provision
42‑4‑1901
School buses - equipped with supplementary brake retarders
42‑4‑1902
School vehicle drivers - special training required
42‑4‑1903
School buses - stops - signs - passing
42‑4‑1904
Regulations for school buses - regulations on discharge of passengers - penalty - exception - definition
42‑4‑2001
Maximum hours of service - ready-mix concrete truck operators
42‑4‑2101
Legislative declaration
42‑4‑2102
Definitions
42‑4‑2103
Abandonment and nonconsensual towing of motor vehicles - private property - rules
42‑4‑2104
Appraisal of abandoned motor vehicles - sale
42‑4‑2105
Liens upon towed motor vehicles
42‑4‑2106
Perfection of lien
42‑4‑2107
Sale of abandoned vehicle
42‑4‑2108
Proceeds of sale
42‑4‑2109
Transfer and purge of certificates of title
42‑4‑2110
Penalty
42‑4‑2201
Definitions
42‑4‑2202
Transfer for recycling
42‑4‑2203
Vehicle verification system - fees - rules
42‑4‑2204
Theft discovered - duties - liability
42‑4‑2301
Comprehensive education
42‑4‑2401
Definitions
42‑4‑2402
Event data recorders
42‑4‑2403
Applicability
42‑4‑2501
Educational materials - updating of driving manual
Green check means up to date. Up to date

Current through Fall 2024

§ 42-4-306’s source at colorado​.gov