Wyo. Stat. § 27-4-410: Records of contractors.

The contractor and each subcontractor or the officer of the public body in charge of the project shall keep an accurate record showing the names and occupations of all workmen employed by them, in connection with the public work, and showing also the actual wages paid to each of the workmen, which record shall be open at all reasonable hours to the inspection of the director or the public body awarding the contract, its officers and agents.