40 C.F.R. § 52.1521

Current through May 31, 2024

Section 52.1521 - Classification of regions

The New Hampshire plan was evaluated on the basis of the following classifications:

Air quality control region	Pollutant
	Particulate matter	Sulfur oxides	Nitrogen dioxide	Carbon monoxide	Ozone
Androscoggin Valley Interstate	IA	III	III	III	III
Central New Hampshire Intrastate	III	III	III	III	III
Merrimack Valley-Southern New Hampshire Interstate	I	III	III	III	I

40 C.F.R. §52.1521

37 FR 10879, May 31, 1972, as amended at 45 FR 24876, Apr. 11, 1980; 80 FR 78141, Dec. 16, 2015; 81 FR 44554, July 8, 2016

81 FR 44554, 8/8/2016