; and (2) shall be effective for the full term of the authorized permit or approval. (c) Application This section shall not apply to an action of the Secretary of the Interior or the Secretary of Agriculture on Indian lands or resources managed in trust for the benefit of Indian Tribes. (d) Activities described The activities referred to in subsection (a) are: (1) Reinstating a lease pursuant to section 31 of the Mineral Leasing Act ( 30 U.S.C. 188 ). (2) The following activities, provided that any new surface disturbance is contiguous with the footprint of the original authorization and does not exceed 20 acres or the acreage evaluated in a document previously prepared under section 102(2)(C) of the National Environmental Policy Act of 1969 with respect to such activity, whichever is greater: (A) Drilling oil or gas wells at a well pad site at which drilling has occurred previously. (B) Expansion of an existing oil or gas well pad site to accommodate additional wells. (C) Expansion or modification of an existing oil or gas well pad site, road, pipeline, facilities, or utilities submitted in a sundry notice. (3) Drilling of oil and gas wells at new well pad sites, provided that the new surface disturbance does not exceed 20 acres or the acreage evaluated in a document previously prepared under section 102(2)(C) of the National Environmental Policy Act of 1969 with respect to such activity, whichever is greater. (4) Construction or realignment of a road, pipeline, or utilities within an existing right-of-way or within a right-of-way corridor established in a land use plan. (5) The following activities when conducted from non-Federal surface into federally owned minerals, provided that the operator submits to the Secretary concerned certification of a surface use agreement with the non-Federal landowner: (A) Drilling oil or gas wells at a well pad site at which drilling has occurred previously. (B) Expansion of an existing oil or gas well pad site to accommodate additional wells. (C) Expansion or modification of an