; (2) may at reasonable times, and without delay, have access to records, inspect any monitoring equipment, or review any method of operation required under this Act; (3) may engage in any work and do all things necessary or expedient to implement and administer the provisions of this Act; (4) may, on any mining claim, license, or lease maintained in compliance with this Act, and without advance notice, stop and inspect any motorized form of transportation that such Secretary has probable cause to believe is carrying hardrock minerals, concentrates, or products derived therefrom from a claim site for the purpose of determining whether the operator of such vehicle has documentation related to such hardrock minerals, concentrates, or products derived therefrom as required by law, if such documentation is required under this Act; and (5) may, if accompanied by any appropriate law enforcement officer, or an appropriate law enforcement officer alone, stop and inspect any motorized form of transportation which is not on a claim site if he or she has probable cause to believe such vehicle is carrying hardrock minerals, concentrates, or products derived therefrom from a claim site, license, or lease on Federal lands or allocated to such claim site, license, or lease. Such inspection shall be for the purpose of determining whether the operator of such vehicle has the documentation required by law, if such documentation is required under this Act. 412. Mineral materials (a) Determinations Section 3 of the Act of July 23, 1955 ( 30 U.S.C. 611 ), is amended— (1) by inserting (a) before the first sentence; (2) by inserting mineral materials, including but not limited to after varieties of in the first sentence; (3) by striking or cinders and inserting in lieu thereof cinders, and clay