23, United States Code. (2) Obligation ceiling (A) In general Notwithstanding any other provision of law, for fiscal year 2021, obligations for activities authorized under paragraph (1) shall not exceed $14,742,808,640. (B) Distribution of obligation authority (i) In general Of the obligation authority provided under subparagraph (A), the Secretary shall make available to States, Tribes, Puerto Rico, the territories, and Federal land management agencies, during the period of fiscal year 2021, amounts of obligation authority equal to the amounts described in subparagraphs (A) through (E) of paragraph (3), respectively. (ii) Further distribution Each State, each Tribe, Puerto Rico, each territory, and each Federal land management agency receiving funds under subparagraphs (A) through (E) of paragraph (3), respectively, shall receive an amount of obligation authority equal to the funds that it receives under any of such subparagraphs. (C) Redistribution of unused obligation authority (i) In general Notwithstanding subparagraph (B), the Secretary shall, after August 1 of fiscal year 2021— (I) revise a distribution of the obligation authority made available under subparagraph (B) if an amount distributed cannot be obligated during that fiscal year