Colo. R. Civ. P. 303

As amended through Rule Change 2024(7), effective April 4, 2024
Rule 303 - Commencement of Action
(a) How Commenced. A simplified civil action is commenced: (1) by filing with the court a complaint consisting of a statement of claim setting forth briefly the facts and circumstances giving rise to the action in the manner and form provided in Rule 308; or (2) by service of a summons and complaint. The complaint must be filed within 14 days of the service of the summons and not less than 7 days in advance of the return date. If the complaint is not timely filed, the service of the summons shall be deemed ineffective and void without notice. In such case the court may, in its discretion, tax a reasonable sum in favor of the defendant to compensate the defendant for expense and inconvenience, including attorney's fees, to be paid by plaintiff or the plaintiff's attorney. The 14 day filing requirement may be expressly waived by a defendant and shall be deemed waived upon the filing of an answer or motion to the complaint without reserving the issue.
(b) Issuance of Summons. Upon the filing of a complaint as provided in section (a) of this rule and the payment of the docket fee, the clerk shall docket the case and assign it a number. Unless summons has prior thereto been issued and signed by an attorney, the clerk shall then sign and issue a summons under the seal of the court. Separate, additional, and amended summons may be issued by the clerk or an attorney of record against any defendant at any time, and when issued by an attorney, it must be filed with the court no later than 7 days in advance of the return date. All process shall be issued by the clerk except as otherwise provided by these rules.
(c) Time of Jurisdiction. The court shall have jurisdiction from (1) the filing of the complaint, or (2) the service of the summons and complaint; provided, however, if more than 14 days elapses after service upon any defendant before the filing of the complaint, jurisdiction as to that defendant shall not attach by virtue of the service.

C.R.C.P. 303

(a) amended July 22, 1993, effective 1/1/1994; (b) amended November 18, 1993, effective 1/1/1994; (a) and (b) amended and effective 6/28/2007; (c) amended and effective 4/10/2008; entire rule amended and adopted December 14, 2011, effective 1/1/2012, for all cases pending on or filed on or after 1/1/2012, pursuant to C.R.C.P. 1(b).