A Class I Substance is One of several groups of chemicals with an ozone depletion potential of 0.2 or higher, including CFCS, Halons, Carbon Tetrachloride, and Methyl Chloroform (listed in the Clean Air Act), and HBFCs and Ethyl Bromide (added by EPA regulations). (See: Global warming potential.)

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Ozone-depleting substance ■■■■■■■■■■
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Class II Substance ■■■■■■■
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Criteria Pollutants ■■■■■■
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State Implementation Plan ■■■■
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Carbon dioxide equivalent ■■■■
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MMTCDE ■■■■
A MMTCDE = (million Metric tons of a gas) * (GWP of the gas) is See greenhouse gas, global warming potential, . . . Read More
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Affected Landfill ■■■
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Class I Area ■■■
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