PUBLIC LAW 101-549—NOV. 15, 1990 104 STAT. 2655 "(ii) reduce significantly the rate at which the atmospheric abundance of chlorine is projected to decrease under the base case; or "(iii) delay the date by which the average atmospheric concentration of chlorine is projected under the base case to return to a level of two parts per billion. " (e) TECHNOLOGY STATUS REPORT IN 2015.— The Administrator shall review, on a periodic basis, the progress being made in the development of alternative systems or products necessary to manufacture and operate appliances without class II substances. If the Administrator finds, after notice and opportunity for public comment, that as a result of technological development problems, the development of such alternative systems or products will not occur within the time necessary to provide for the manufacture of such equipment without such substances prior to the applicable deadlines under section 605, the Administrator shall, not later than January 1, 2015, so inform the Congress. "(f) EMERGENCY REPORT. —I f, in consultation with the Administrators of the National Aeronautics and Space Administration and the National Oceanic and Atmospheric Administration, and after notice and opportunity for public comment, the Administrator determines that the global production, consumption, and use of class II substances are projected to contribute to an atmospheric chlorine loading in excess of the base case projections by more than ^loths parts per billion, the Administrator shall so inform the Congress immediately. The determination referred to in the preceding sentence shall be based on the monitoring under subsection (d) and updated not less often than every 3 years. "SEC. 604. PHASE-OUT OF PRODUCTION AND CONSUMPTION OF CLASS I 42 USC 7671c. SUBSTANCES. "(a) PRODUCTION PHASE-OUT.— Effective on January 1 of each year specified in Table 2, it shall be unlawful for any person to produce any cleiss I substance in an annual quantity greater than the relevant percentage specified in Table 2. The percentages in Table 2 refer to a maximum allowable production as a percentage of the quantity of the substance produced by the person concerned in the baseline year. "Date " 1991 " 1992 " 1993 " 1994 "1995 " 1996 " 1997 " 1998 " 1999 " 2000 "2001 "TABLE 2 Carbon tetrachloride chSSm 100% 100% 90% 100% 80% 90% 70% 85% 15% 70% 15% 50% 15% 50% 15% 50% 15% 50% 20% 20% Other class I substances .... 85% .... 80% .... 75% .... 65% .... 50% .... 40% .... 15% .... 15% .... 15% " (b) TERMINATION OF PRODUCTION OF CLASS I SUBSTANCES. —Effective January 1, 2000 (January 1, 2002 in the case of methyl chloro-
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