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Title 40: Protection of Environment
§51.1012 Requirement for contingency measures.
Consistent with section 172(c)(9) of the Act, the State must submit in each attainment plan specific contingency measures to be undertaken if the area fails to make reasonable further progress, or fails to attain the PM2.5 NAAQS by its attainment date. The contingency measures must take effect without significant further action by the State or EPA.