Colorado Revised Statutes (LexisNexis) (Colo. Rev. Stat.)
West's Colorado Revised Statutes Annotated (Colo. Rev. Stat. Ann. (West))
The National Conference of State Legislatures publishes a list of official state code publications, and their available formats, based upon a 2011 survey of Official Version of the State Statutes/Code.
In Westlaw, see also state legislative history, statutes annotated - historical, bill tracking, bill tracking historical, and proposed & enacted legislation.
In Lexis, full-text bills, advance legislative service, and legislative bill history may be found in Statutes and Legislation. It also offers an Archived Code Search.
In Bloomberg Law, text of enacted legislation may be found through State Laws & Regulations.
LLMC Digital may contain digitized historical senate and house journals as well as historical state statutes and/or session laws (Online Services > Browse Collections > U.S. States and Territories > State Name > Legislative).
State Legislative Sourcebook (in print, Call Number: Reference Desk JK2495 .S689), though ceased in 2021, is a 50-state guide on legislative information resources. In addition to providing the location of a state's legislative documents, it also includes sources for tracking services, document mailing services and best live person initial contact.
For provision-by-provision commentary on the state's constitution with analysis of the state's current constitution and its evolution, see Oxford Commentaries on the State Constitutions of the United States. Editions held by the Law Library will be found in the catalog, including those published under a former series title.