Wyo. Const. art. 3, § 24: Bill to contain only one subject, which shall be expressed in title.

No bill, except general appropriation bills and bills for the codification and general revision of the laws, shall be passed containing more than one subject, which shall be clearly expressed in its title; but if any subject is embraced in any act which is not expressed in the title, such act shall be void only as to so much thereof as shall not be so expressed.