C.R.S.
Section 7-90-310
Proof of delivery for filing
(1)
The secretary of state may consider a document to have been received for filing upon proof of such receipt as evidenced by a signed return receipt, an entry in records maintained by the secretary of state of electronic or facsimile transmissions received by the secretary of state, or such other or additional proof of receipt of the documents received as the secretary of state may require. Such proof must be satisfactory to the secretary of state before the document will be considered received.(2)
The secretary of state may require that the receipt of a document by facsimile transmission on or after February 11, 1994, be shown in the records of the secretary of state of facsimile transmissions received by the secretary of state. The secretary of state may condition relief under this section upon fulfillment of such other requirements or conditions that the secretary of state determines appropriate, including, without limitation, the making of a change of entity name of the entity involved and payment of fees for the filing.(3)
Application for relief under this section shall be made in writing and delivered to the secretary of state within sixty days after the purported date of receipt of such document by the secretary of state. The application shall contain information satisfactory to the secretary of state to enable the secretary of state to identify the transaction.
Source:
Section 7-90-310 — Proof of delivery for filing, https://leg.colorado.gov/sites/default/files/images/olls/crs2023-title-07.pdf
(accessed Oct. 20, 2023).