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National emissions standards for hazardous

National emissions standards for hazardous air pollutants (neshaps) are emissions standards set by u.s epa for an air pollutant not covered by national ambient air quality standards (naaqs) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness the standards for a particular source category require the maximum degree of emission reduction that the epa determines to be achievable, which is known as the maximum achievable control.

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