; (ii) the Secretary of Agriculture, acting through the Chief of the Forest Service; (iii) Tribal, State, and local transportation and wildlife authorities; (iv) metropolitan planning organizations (as such term is defined in section 134(b) of title 23, United States Code); (v) members of the American Association of State Highway and Transportation Officials; (vi) members of the Association of Fish and Wildlife Agencies; (vii) experts in the field of wildlife-vehicle collisions; (viii) nongovernmental organizations; and (ix) other interested stakeholders, as appropriate. (2) Standardized national data system with voluntary template implementation The Secretary shall— (A) develop a template for State implementation of a standardized national wildlife collision and carcass data system for the National Highway System that is based on the standardized methodology developed under paragraph (1); and (B) encourage the voluntary implementation of the template developed under subparagraph (A) for States, metropolitan planning organizations, and additional relevant transportation stakeholders. (3) Reports (A) Methodology The Secretary shall submit to Congress a report describing the development of the standardized methodology required under paragraph (1) not later than— (i) the date that is 18 months after the date of enactment of this Act; and (ii) the date that is 180 days after the date on which the Secretary completes the development of such standardized methodology. (B) Implementation Not later than 3 years after the date of enactment of this Act, the Secretary shall submit to Congress a report describing— (i) the status of the voluntary implementation of the standardized methodology developed under paragraph (1) and the template developed under paragraph (2)(A)