Protecting Oregon's Environment
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 Oregon Department of Environmental Quality

Air Quality

Title V Operating Permit Program

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  Air Quality Home
Air Quality Index
Air Toxics
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Field Burning
(Forestry/Agriculture)
Regional Haze
  Transportation
  Vehicle Inspection Program
   

Modification forms (series MD900)

Form number (fillable form) Category Description
MD901 PDF Modification Notice of (construction/modification) approval application
MD902 PDF Modification Off-permit change notification
MD903 PDF Modification 502(b)(10) change notification
MD904 PDF Modification Administrative permit amendment application
MD905 PDF Modification Minor permit modification application
MD906 PDF Modification Significant permit modification application
MACT Hammer PDF Modification Part 2 MACT Hammer Application
[print version]

For questions about air quality regulations or permits, see our Contacts page.

For more information about Air Quality call 503-229-5359 or email.

Oregon Department of Environmental Quality
Headquarters: 811 SW Sixth Ave., Portland, OR 97204-1390
Phone: 503-229-5696 or toll free in Oregon 1-800-452-4011
Oregon Telecommunications Relay Service: 1-800-735-2900  FAX: 503-229-6124

The Oregon Department of Environmental Quality is a regulatory agency authorized to protect Oregon's environment by
the State of Oregon and the Environmental Protection Agency.

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