; and (8) construction, maintenance, realignment, or repair of an existing permanent or temporary access road— (A) within an existing right-of-way or within a transmission or utility corridor established by Congress or in a land use plan; (B) that serves an existing transmission line, distribution line, or energy facility or (C) activities conducted in accordance with existing onshore oil and gas leases. 205. No net loss determination for existing rights-of-way (a) In general Upon a determination by the Secretary concerned that there will be no overall long-term net loss of vegetation, soil, or habitat, as defined by acreage and function, resulting from a proposed action, decision, or activity within an existing right-of-way, within a right-of-way corridor established in a land use plan, or in an otherwise designated right-of-way, that action, decision, or activity shall not be considered a major Federal action under section 102(2)(C) of the National Environmental Policy Act of 1969 ( 42 U.S.C. 4332(2)(C) ). (b) Inclusion of remediation In making a determination under subsection (a), the Secretary concerned shall consider the effect of any remediation work to be conducted during the lifetime of the action, decision, or activity when determining whether there will be any overall long-term net loss of vegetation, soil, or habitat. 206. Determination of National Environmental Policy Act adequacy The Secretary concerned shall use previously completed environmental assessments and environmental impact statements to satisfy the requirements of section 102 of the National Environmental Policy Act of 1969 ( 42 U.S.C. 4332 ) with respect to any major Federal action, if such Secretary determines that— (1) the new proposed action is substantially the same as a previously analyzed proposed action or alternative analyzed in a previous environmental assessment or environmental impact statement