This summary is grounded in the 2025 Colorado Revised Statutes Title 24 capture and recent official session-law materials. The controlling provisions are sections 24-6-401 and 24-6-402, C.R.S., current through the 2025 CRS publication captured on 2026-04-21.
The statute distinguishes local public bodies and state public bodies.
Local public bodies include boards, committees, commissions, authorities, advisory bodies, policy-making bodies, rule-making bodies, formally constituted bodies of political subdivisions, and public or private entities delegated a governmental decision-making function by a political subdivision or its official. The definition excludes administrative staff. It expressly includes certain school collective-bargaining meetings, institute charter school governing boards, and, after SB25-147, the PERA board of trustees.
State public bodies include boards, committees, commissions, advisory, policy-making, rule-making, decision-making, or formally constituted bodies of state agencies, state authorities, governing boards of state institutions of higher education, certain nonprofit corporations under section 23-5-121(2), the General Assembly, and public or private entities delegated a state governmental decision-making function. Institute charter school governing boards are excluded from the state-body definition because they are treated as local public bodies.
A meeting is any gathering convened to discuss public business, whether in person, by telephone, electronically, or by other means.
For state public bodies, meetings of two or more members at which public business is discussed or formal action may be taken are public meetings. For local public bodies, the threshold is a quorum or three or more members, whichever is fewer, at which public business is discussed or formal action may be taken.
The statute excludes chance meetings or social gatherings where discussion of public business is not the central purpose.
Any meeting at which adoption of a proposed policy, position, resolution, rule, regulation, or formal action occurs, or at which a majority or quorum is in attendance or expected, requires full and timely public notice.
For local public bodies, twenty-four-hour notice with specific agenda information where possible is a statutory safe harbor. Since July 1, 2019, local public bodies may satisfy the notice rule through a no-charge public website notice, with specific agenda information if available, plus emergency physical-posting fallback if online notice fails because of exigent or emergency circumstances.
State-body minutes must be taken and promptly recorded. Local-body minutes must be taken and promptly recorded for meetings where adoption or formal action occurs or could occur. Minutes must be open to public inspection and must reflect the executive-session topic when an executive session occurs.
Electronic communications can be meetings. Section 24-6-402(2)(d)(III), as amended by HB21-1025, treats exchanges of electronic mail among elected officials discussing pending legislation or other public business as subject to COML. Electronic mail that does not relate to the merits or substance of public business is not a meeting, including scheduling, availability, forwarding information, responding to non-member inquiries, or posing a question for later discussion. "Merits or substance" means discussion, debate, or exchange of ideas about the essence of a public policy proposition, specific proposal, or other matter before the body.
SB24-157 created special General Assembly rules. For notice and minutes rules, a quorum of a state public body of the General Assembly must be contemporaneous. Written communications among members of the General Assembly are not subject to COML, though records remain subject to CORA where CORA requires disclosure. The act also narrows "public business" for the General Assembly to introduced legislation, certain proposed legislation, and matters before legislative committees, while excluding interpersonal, administrative, logistical, personnel, planning, process, training, or operations matters when the merits or substance of defined public business are not discussed.
State public bodies may convene executive sessions only at regular or special meetings after a public announcement identifying the topic, specific statutory citation, and particular matter in as much detail as possible without compromising the executive-session purpose, followed by a two-thirds vote of the entire membership. Local public bodies use the same announcement requirement but require a two-thirds vote of the quorum present.
No adoption of proposed policy, position, resolution, rule, regulation, or formal action may occur in executive session, except executive-session minutes review, approval, and amendment.
State-body executive-session categories include property transactions where premature disclosure would create unfair bargaining advantage; attorney conferences for pending or imminent disputes, specific claims or grievances, or legal advice on specific legal questions; matters required to be confidential; security details; negotiation strategy with employees or employee organizations; specific higher-education hospital, nonprofit, and honorary-award matters; personnel/student matters under subsection (3)(b); parole matters; and higher-education governing-board provisions.
Local-body categories include property interests; attorney legal advice on specific legal questions; matters required confidential by federal or state law or rules; security details; negotiation positions/strategy/instructions; personnel matters subject to employee-open-meeting rights and exclusions for members/elected officials/personnel policies; consideration of documents protected by mandatory CORA nondisclosure, except that work product and deliberative-process records must be considered publicly unless another executive-session category applies; individual students; and school district or charter school chief executive officer finalist negotiations and executive-session finalist interviews under subsection (4)(i).
Executive-session discussions must be electronically recorded. The recording must reflect the statutory citation and actual contents of discussion unless the attorney representing the body states or later signs that a portion constitutes privileged attorney-client communication.
Executive-session recordings must generally be retained at least ninety days. They are not open to public inspection or discovery except by body consent or the statutory in camera procedure in section 24-72-204(5.5).
If a court finds substantial discussion of unauthorized matters or formal action in executive session, the improper portion of the executive-session record is open to public inspection.
Secret ballots are prohibited for adoption of proposed policy, position, resolution, rule, regulation, or formal action unless specifically authorized. Secret ballots are allowed for public-body leadership elections and search-committee member selection, but the outcome must be contemporaneously recorded in the minutes.
No resolution, rule, regulation, ordinance, or formal action is valid unless taken or made at a meeting that satisfies subsection (2).
Any person denied or threatened with denial of rights conferred on the public by COML has injury in fact and standing. Courts of record may issue injunctions on application by any Colorado citizen. When a court finds a violation, it must award costs and reasonable attorney fees to the citizen prevailing in the action. If no violation is found, a prevailing party receives costs and reasonable fees only if the action was frivolous, vexatious, or groundless.
Future analysis should start with the body type, threshold, public business, and action being challenged. Executive-session issues require separate analysis of notice specificity, statutory category, vote, recording, privilege carveout, and whether any formal action or unauthorized substantial discussion occurred. Electronic communications require identifying whether the merits or substance of public business were discussed and whether the General Assembly-specific rules apply.