New Jersey Department of Environmental Protection (NJDEP)

EPA designated the counties of Bergen, Essex, Hudson, Hunterdon, Middlesex, Monmouth, Morris, Passaic, Somerset, Sussex, Union and Warren as moderate nonattainment for ozone. On the other hand, the counties of Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester, Mercer, Ocean and Salem are classified as marginal nonattainment for ozone.

ERCs are available for six different pollutants:

Pollutant Significant Emission Rates
Nitrogen oxides (NOx) >10 tons/year
Volatile organic compounds (VOC) >10 tons/year
Sulfur dioxide (SO2) >27 tons/year
Carbon monoxide (CO) >100 tons/year
PM10 >27 tons/year
PM2.5 >10 tons/year

New or modified major facilities in nonattainment areas must obtain ERCs to satisfy the offset ratio requirements for proposed emission increases. The offset ratio for marginal nonattainment area for ozone is 1.1 to 1. That means if 100 tpy of VOCs are emitted from a proposed new or modified major facility in the counties of Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester, Mercer, Ocean and Salem, the facility must obtain 110 tpy of ERCs to offset the increase in VOC emissions.

Additionally, the offset ratio for moderate nonattainment area for ozone is 1.15. Therefore, for 100 tpy of VOC emitted from a proposed new or modified major facility in the counties of Bergen, Essex, Hudson, Hunterdon, Middlesex, Monmouth, Morris, Passaic, Somerset, Sussex, Union and Warren, the facility must obtain 115 tpy of ERCs to offset the increase in VOC emissions.

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