Legislative Research - Colorado: Prior Legislative Sessions

Legislative histories are not already written. They must be compiled by the researcher from many different sources and materials.

Searchable access to all Colorado Legislative Council Research Publications; legislation related to each publication; information on performing legislative history research at the state and federal level. Unrestricted Access.

(1881-present). Alphabetical, biographical information.

Immediately after the adjournment of each session, the Office of Legislative Legal Services indexes and publishes all the bills and concurrent resolutions passed at that session together with those resolutions and memorials designated for printing by the Senate and the House of Representatives. The “Red Book,” (so called because it was originally bound in a red cover), is a “Tabulation” of all changes made by amendments, additions, and repeals to Colorado Revised Statutes by Chapter, House or Senate Bill number or by Statute. The “Red Book,” is available online, back to 1993. Prior to 1993, Session Laws in Red Book format are available in hard copy form for public review in the Colorado Joint Legislative Library in the Capitol basement.

This is the state's repository of Colorado legal and historical records. Includes audiotapes of Colorado House and Senate debates, floor proceedings, House / Senate Committee Hearings, House / Senate standing and interim committee meetings.

200 East Colfax Ave.
State Capitol Bldg., Rm. 029
Denver, CO 80203
303-866-3521

Address all inquiries to the Colorado State Archives. There are fees associated with listening to the tapes, handling records, professional assistance and copy work. Please contact the State Archives for specific rates.