; and (2) allow exploration activities to proceed if— (A) the surface disturbance of such exploration activities on such public lands will not exceed 5 acres; (B) the Secretary concerned determines that the notice is complete; and (C) the operator provides financial assurance that the Secretary concerned determines is adequate. (d) Definitions In this section: (1) Exploration activity The term exploration activity — (A) means creating surface disturbance greater than casual use that includes sampling, drilling, or developing surface or underground workings to evaluate the type, extent, quantity, or quality of mineral values present; (B) includes constructing drill roads and drill pads, drilling, trenching, excavating test pits, and conducting geotechnical tests and geophysical surveys; and (C) does not include activities where material is extracted for commercial use or sale. (2) Secretary concerned The term Secretary concerned means— (A) with respect to lands administered by the Secretary, the Secretary; and (B) with respect to National Forest System lands, the Secretary of Agriculture. 20307. Use of mining claims for ancillary activities Section 10101 of the Omnibus Budget Reconciliation Act of 1993 ( 30 U.S.C. 28f ) is amended by adding at the end the following: (e) Security of tenure (1) In general (A) In general A claimant shall have the right to use, occupy, and conduct operations on public land, with or without the discovery of a valuable mineral deposit, if— (i) such claimant makes a timely payment of the location fee required by section 10102 and the claim maintenance fee required by subsection (a)