Research operations exemptions.

§ 52.272 Research operations exemptions.

(a) The requirements of § 51.281 of this chapter are not met because the following regulations allow exemptions to be granted from the applicable emission limitations, thereby potentially rendering the applicable limitations unenforceable. Furthermore, the regulations are inconsistent with the Clean Air Act, because the regulations could permit violations of the National Ambient Air Quality Standards under some circumstances. Therefore, the following regulations are disapproved:

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