and biodegradable organic fractions of industrial and municipal wastes, but does not include gases and liquids recovered from the decomposition of nonfossilized and biodegradable organic material. (19) Source category The term source category means any category or subcategory regulated under part 60 of title 40, Code of Federal Regulations, or part 90 of title 40, Code of Federal Regulations. . (b) Clerical amendment The table of subtitles for the Internal Revenue Code of 1986 is amended by adding at the end the following new item: L Greenhouse Gas Emissions . (c) Effective date The amendments made by this section shall apply to emissions after the later of December 31, 2023, and the date that is one year after the date regulations are promulgated under section 9914 of the Internal Revenue Code of 1986. 102. Border greenhouse gas adjustments (a) In general Subtitle L of the Internal Revenue Code of 1986, as added by subsection (a), is further amended by adding at the end the following new part: 2 TAX ADJUSTMENTS FOR IMPORTS AND EXPORTS OF GREENHOUSE GAS INTENSIVE PRODUCTS Sec. 9911. Purposes. Sec. 9912. Definitions. Sec. 9913. Notification of foreign countries. Sec. 9914. Border tax adjustment rate. 9911. Purposes (a) Purposes of part The purposes of this part are— (1) to promote a strong global effort to significantly reduce greenhouse gas emissions, and (2) to prevent carbon leakage. (b) Additional purposes of part The purposes of this part are additionally— (1) to provide a rebate to exporters in domestic eligible industrial sectors for the greenhouse gas emission costs of the owners and operators incurred under this title, but not for costs associated with other related or unrelated market dynamics, (2) to ensure that imports from other countries, and, in particular, fast-growing developing countries, do not enjoy competitive advantages because of the carbon tax liability of domestic manufacturers, and therefore increase their emissions, (3) to encourage foreign countries to take substantial action with