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U.S. Code > Title 30 Mineral Lands and Mining > CHAPTER 3A—LEASES AND PROSPECTING PERMITS (§§ 181—287) > SUBCHAPTER IX—POTASH (§§ 281—287) > § 287. Extension of prospecting permits
§ 287. Extension of prospecting permits
Any prospecting permit issued under this subchapter may be extended by the Secretary of the Interior for a period not exceeding two years, upon a showing of satisfactory cause.