; (B) the permit has been denied, including a description of why the permit was denied; or (C) such activity requires an environmental assessment or environmental impact statement, as applicable, before a permit may be issued for the activity. (b) Compliance with NEPA In any case in which an environmental assessment or environmental impact statement is required under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.) for an activity for which a governing body has requested a permit from the Secretary concerned to conduct such activity on a qualified acequia or qualified land grant-merced on Federal land, and for which the Secretary has not denied the permit under subsection (a)(3), the Secretary shall— (1) estimate the time necessary to complete such environmental assessment or environmental impact statement; (2) not later than 30 days after receiving the request for a permit from a governing body, notify the governing body of such estimation; and (3) not later than 30 days after completing all action required under such Act for such activity— (A) issue such permit to the community user or governing body; or (B) notify the community user or governing body that the request for a permit has been denied. (c) Failure To time estimate If the Secretary concerned fails to prepare an environmental assessment or environmental impact statement within the respective time period estimated under subsection (b)(1), then the Secretary shall— (1) notify the governing body in writing of the delay; (2) notify Congress in writing of the delay; (3) make a new estimate of the time necessary to complete such environmental assessment or environmental impact statement