Colo. Rev. Stat. § 27-91-102
A member of a board of control, trustees, or commissioners of all institutions supported by or under the patronage and control of the state shall receive as compensation for his or her services only actual expenses incurred in attendance upon and in going to and returning from each regular and special meeting of the board of control, trustees, or commissioners or for performing any services whatever for the institution of which he or she is a member of the board of control, trustees, or commissioners, payment to be made out of the funds appropriated for the support and maintenance of the respective institutions. In all cases of cash paid out by the member of a board of control, trustees, or commissioners, an itemized account, accompanied by the proper vouchers therefor, signed by the party to whom such money has been paid, shall accompany the vouchers upon which all warrants for such expenditures shall issue.
C.R.S. § 27-91-102
This section is similar to former § 27-2-102 as it existed prior to 2010.