Supplement not supplant Grant funds received under this section shall be used to supplement and not supplant other Federal, State, and local public funds expended on public value capture and affordable transit-oriented development programs in the State or local government. (8) Value capture policy requirements (A) Value capture policy Not later than October 1 of the fiscal year that begins 2 years after the date of enactment of this section, the Secretary, in collaboration with State departments of transportation, metropolitan planning organizations, and regional council of governments, shall establish voluntary and consensus-based value capture standards, policies, and best practices for State and local value capture mechanisms that promote greater investments in public transportation and affordable transit-oriented development. (B) Report Not later than 15 months after the date of enactment of this section, the Secretary shall make available to the public a report cataloging examples of State and local laws and policies that provide for value capture and value sharing that promote greater investment in public transportation and affordable transit-oriented development. (C) Best Practices Based on the report required under subparagraph (B), the Secretary shall identify and disseminate examples of best practices where States and local governments have adopted value capture and value sharing mechanisms that have successfully provided for greater investment in public transportation and affordable transit-oriented development. (b) Definitions For purposes of this section— (1) the term value capture means capturing a portion of the incremental economic value created by government investments, activities, and policies that may generate alternative revenue streams, assets, or other financial value for which could assist in funding those investments and activities