30 U.S.C. § 28c

ProvidedProvided furtherThe period for which said deferment may be granted shall end when the conditions justifying deferment have been removed: , That the initial period shall not exceed one year but may be renewed for a further period of one year if justifiable conditions exist: , That the relief available under sections 28b to 28e of this title is in addition to any relief available under any other Act of Congress with respect to mining claims.