Wyoming constitution
Article 3: legislative department
Section 6

The legislature shall not meet for more than sixty (60) legislative working days excluding Sundays during the term for which members of the house of representatives are elected, except when called into special session. The legislature shall determine by statute the number of days not to exceed sixty (60) legislative working days to be devoted to general and budget session, respectively. The legislature shall meet on odd-numbered years for a general and budget session. The legislature may meet on even-numbered years for budget session. During the budget session no bills except the budget bill may be introduced unless placed on call by a two-thirds vote of either house. The legislature shall meet for no more than forty (40) legislative working days excluding Sundays in any (1) calendar year, except when called into special session. The compensation of the members of the legislature shall be as provided by law; but no legislature shall fix its own compensation.