Notice of Construction (NOC) Permit
Businesses that are new, replacing or modifying emission control equipment, or are increasing their air pollutant emissions must undergo new source review. New source review requires businesses that emit air pollution in Ecology-regulated counties to get a permit called a "Notice of Construction (NOC)." A notice of construction limits the business's air pollution emissions. It is also called a "pre-construction permit" because the business owner must get this permit before starting construction or operation of the business.
Most, but not all, businesses that are new, replacing or modifying emission control equipment, or are increasing their air pollutant emissions need a notice of construction permit. A business may be exempt from this permit requirement based on either its equipment (listed in WAC 173-400-110(4)) or its emission levels (listed in WAC 173-400-110(5).
How to apply for a notice of construction permit
Ecology is your permitting agency, see the Instructions for Ecology's Notice of Construction Application and the Notice of Construction Application. Fill out and submit the complete application with the initial application fee.
If another agency is your permitting agency, contact them for details. Other agencies use different application forms.
Use the table below to determine which agency issues NOC permits in your area.
Businesses that want to construct a new source of air pollution emissions or modify an
existing source need to submit a
Notice of Construction Application (ECY 070-410) to Ecology with the initial fee. Instructions for completing
the application are available at the same link, listed as forms ECY 070-410 a - g.
Businesses that want to limit their potential to emit need to submit an
Application to Establish a Voluntary Emissions Limit
(ECY 070-416) to Ecology with the initial fee.
For environmental permitting assistance: Governor's Office for Regulatory Innovation and Assistance (ORIA)
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