; and (ii) notifies the Administrator in writing that the requirement under clause (i) has been met. (C) Baseline period Each report under paragraph (1) shall include, as applicable, the information described in that paragraph for the baseline period of calendar years 2011 through 2013. (b) Coordination The Administrator may allow any person subject to the requirements of subsection (a)(1) to combine and include the information required to be reported under that subsection with any other related information that the person is required to report to the Administrator. 6. Phase-down of production and consumption of regulated substances (a) Baselines (1) In general Subject to paragraph (4), the Administrator shall establish for the phase-down of regulated substances— (A) a production baseline for the production of all regulated substances in the United States, as described in paragraph (2); and (B) a consumption baseline for the consumption of all regulated substances in the United States, as described in paragraph (3). (2) Production baseline described The production baseline referred to in paragraph (1)(A) is the quantity equal to the sum of— (A) the average annual quantity of all regulated substances produced in the United States during the period— (i) beginning on January 1, 2011; and (ii) ending on December 31, 2013; and (B) the quantity equal to the sum of— (i) 15 percent of the production level of hydrochlorofluorocarbons in calendar year 1989; and (ii) 0.42 percent of the production level of chlorofluorocarbons in calendar year 1989. (3) Consumption baseline described The consumption baseline referred to in paragraph (1)(B) is the quantity equal to the sum of— (A) the average annual quantity of all regulated substances consumed in the United States during the period— (i) beginning on January 1, 2011; and (ii) ending on December 31, 2013; and (B) the quantity equal to the sum of— (i) 15 percent of the consumption level of hydrochlorofluorocarbons in calendar year 1989