No applications for grants shall be approved within a period of thirty days after the effective date of this Act.
     In the event an allocation is made to a housing authority prior to the formation of a Land Clearance Commission for the same municipality, or to a Land Clearance Commission prior to the formation of a housing authority, the limitation on the amount of the grant as provided in Section 2 shall not be applicable, and the maximum amount allocable on the basis of the proportion of population as specified in Section 2 may lawfully be granted to such existing housing authority or Land Clearance Commission.