C.R.S.
Section 19-6-103
Summons
(1)
Upon filing of the petition, the clerk of the court or the attorney for the petitioner or the delegate child support enforcement unit shall issue a summons stating the substance of the petition and requiring the respondent to appear at the time and place set for hearing on the petition.(2)
Service of the summons shall be by personal service as provided in the Colorado rules of civil procedure. In addition to any other method provided by rule or statute, including rule 4(e) of the Colorado rules of civil procedure, when there is a basis for personal jurisdiction over an individual living outside this state pursuant to section 14-5-201, C.R.S., service may be accomplished by delivering a copy of the summons, together with a copy of the petition upon which it was issued, to the individual served. Such service may be by private process server or by sending such copies to such individual by certified mail with proof of actual receipt by such individual.(3)
The hearing shall be set for a day not less than ten days after service is completed or on such later date as the court may order.
Source:
Section 19-6-103 — Summons, https://leg.colorado.gov/sites/default/files/images/olls/crs2023-title-19.pdf
(accessed Oct. 20, 2023).