Whenever any application for a waiver of restrictions is granted pursuant to Section 17.56.040 the owner of the property upon which the fallout shelter is to be constructed shall record a covenant in the chain of title for the benefit of the city stating that the owner and his successors in interest will remove said fallout shelter within six months after the adoption by the city council of a resolution declaring that such shelters are no longer necessary for the protection of human life. (Ord. 5020 § 20, 2020; prior code § 17.69.100)