Wyo. Stat. § 15-6-426: Assessments; limitation of actions.

An action to collect any special assessment or installment for local improvements of any kind, or to enforce the lien of any such assessment or installment, whether brought by a city or town or by the holder of any certificate of delinquency, or by any other person having the right to bring the action, shall be commenced within ten (10) years after the assessment becomes delinquent, or within ten (10) years after the last installment becomes delinquent.