Legal authority.
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Law
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CFR 40
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Protection of Environment
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Environmental Protection Agency
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Air Programs
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Approval and Promulgation of Implementation Plans
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Rhode Island
- Legal authority.
[37 FR 10891, May 31, 1972, as amended at 39 FR 7283, Feb. 25, 1974; 39 FR 12350, Apr. 5, 1974; 51 FR 40676, Nov. 7, 1986; 81 FR 23179, Apr. 20, 2016]
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