§49.1 Program overview.(a) The regulations in this part identify those provisions of the Clean Air Act (Act) for which Indian tribes are or may be treated in the same manner as States. In general, these regulations authorize eligible tribes to have the same rights and responsibilities as States under the Clean Air Act and authorize EPA approval of tribal air quality programs meeting the applicable minimum requirements of the Act.(b) Nothing in this part shall prevent an Indian tribe from establishing additional or more stringent air quality protection requirements not inconsistent with the Act.
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机译：§49.1计划概述。 r n（a）本部分中的规定确定了《清洁空气法》（法）的那些规定，在这些规定中，印第安部落受到或可以与各州相同的方式对待。通常，这些法规授权符合条件的部落与《清洁空气法》所规定的州具有相同的权利和责任，并授权EPA批准符合该法适用最低要求的部落空气质量计划。 r n（b）部分应防止印第安部落建立不违反该法案的其他或更严格的空气质量保护要求。
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