Wyo. Stat. § 3-9-104: Power of attorney is durable.

(a) A power of attorney created on or after the effective date of this act is durable unless it expressly provides that it is terminated by the incapacity of the principal.

(b) A power of attorney existing on the effective date of this act is durable only if on that day the power of attorney is durable in accordance with the law existing on the day of execution of the power of attorney.