Colorado Revised Statutes Title 24. Government State § 24-80.1-108. Duties of the society

(a) Prepare, expand, and maintain a state register of historic properties and establish and promulgate criteria and procedures by which properties shall be determined to be eligible for, nominated to, and listed in the state register, no later than December 31, 1975;

(b) Regularly notify agencies of additions or deletions to the state register;

(c) Prepare, no later than June 30, 1976, a preservation plan which it shall review and revise annually after said date.