Washington Hazardous Air Pollutants: What you need to know

Governing Law and Regulations

National Emissions Standards for Hazardous Air Pollutants (NESHAP): 40 CFR 61, 40 CFR 63, and Washington Administrative Code (WAC) 173-400-075

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Toxic air pollutants (TAP) control program: WAC 173-460-010 to 173-460-150

Applicability: WAC 173-460-010, WAC 173-460-030, and WAC 173-460-040

Quantifying emissions: WAC 173-460-050

Emissions control requirements: WAC 173-460-060

Ambient impact requirements: WAC 173-460-070, WAC 173-460-080, WAC 173-460-090, and WAC 173-460-100

Voluntary limits: WAC 173-460-071

Perchloroethylene (PCE) dry cleaner standards: WAC 173-400-075(8)

Applicability: WAC 173-400-075(8)(a) and WAC 173-400-075(8)(b)

Operation and maintenance: WAC 173-400-075(8)(b), WAC 173-400-075(8)(d), WAC 173-400-075(8)(g), and WAC 173-400-075(8)(h)

Inspections and repairs: WAC 173-400-075(8)(e) and WAC 173-400-075(8)(f)

Recordkeeping: WAC 173-400-075(8)(c)

Regulatory Agencies

Washington Department of Ecology (WDOE) Air Quality Program

Benton Clean Air Agency

Northwest Clean Air Agency

Olympic Region Clean Air Agency

Puget Sound Clean Air Agency

Southwest Clean Air Agency

Spokane Regional Clean Air Agency

Yakima Regional Clean Air Authority

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Washington has developed a program to permit and control the discharge of TAPs. The state standards include additional pollutants not on the federal hazardous air pollutant (HAP) list. In addition, Washington has adopted by reference the National Emissions Standards for Hazardous Air Pollutants (NESHAP), including the source-specific NESHAPs, known as maximum achievable control technology (MACT) ...

>> Read more about Hazardous Air Pollutants

State Requirements

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Washington Hazardous Air Pollutants Resources

Hazardous Air Pollutants Products

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