; 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 of the Interior, the Secretary of the Interior; and (B) with respect to National Forest System lands, the Secretary of Agriculture. 307. 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) Claimant rights (A) Definition of operations In this paragraph, the term operations means— (i) with respect to a locatable mineral, any activity or work carried out in connection with— (I) prospecting; (II) exploration; (III) discovery and assessment; (IV) development; (V) extraction; or (VI) processing; (ii) the reclamation of an area disturbed by an activity described in clause (i)