A parent or guardian, as principal, may designate a standby guardian of a minor in accordance with the provisions of sections 45a-624 to 45a-624g, inclusive. Such designation, in a form as provided in § 45a-624b, shall take effect upon the occurrence of a specified contingency, including, but not limited to, the mental incapacity, physical debilitation or death of the principal, provided a written statement signed under penalty of false statement has been executed pursuant to § 45a-624c that such contingency has occurred. A designation of a standby guardian shall be in writing and signed and dated by the principal with at least two witnesses. The principal shall provide a copy of such designation to the standby guardian.