Compliance staff are available to answer questions and investigate complaints throughout the state. Inspectors can be contacted at our regional offices.
Major Stationary Source Resources
Major stationary sources are those who have been issued a Title V air emission license (also known as a Part 70 license). The following resources apply to major stationary sources.
Semiannual and Quarterly Reports
Facilities with Title V licenses are required to submit semiannual reports to the Bureau of Air Quality. Semiannual reports contain the same information as Quarterly Reports with the addition of a summary report of deviations and required periodic monitoring (including instrumental monitoring, inspections, and recordkeeping demonstrating compliance with license conditions). Semiannual reports must indicate all deviations from license requirements and the corrective action taken.
For sources required to submit both semiannual and quarterly reports, sources may submit one report at each six-month interval which meets the requirements of both semiannual and quarterly reports. Quarterly reports are still required to be submitted every three months, in-between semiannual reporting.
The following documents and forms (all presented in Microsoft Word format) have been developed by the Department as guidance:
- Semiannual Guidance Document
- Deviation Report Form
- Periodic Monitoring Form
- Periodic Monitoring Form Example
- Excess Emission Report Form
Annual Compliance Certification
Facilities with Title V licenses are required to submit an annual compliance certification. Sources are required to submit a certification regarding their compliance status for all applicable requirements signed by a responsible official. The following guidance document and template are available for use in developing the annual certification.
Annual compliance certifications must be submitted to US EPA and the Bureau of Air Quality. Two copies of the compliance certification should be provided to the Department. One copy should be provided to:
Maine Department of Environmental Protection
17 State House Station
Augusta, Maine 04333-0017
The second copy should be sent directly to your compliance inspector at your local regional office.
US EPA's copy should be sent to the following address:
EPA-New England, Region 1
5 Post Office Sq. Suite 100
Mail Code OES 04-2
Boston, MA 02109-3912
Boat Building and Repair Facilities
DEP has developed a self-assessment tool for facilities that perform boat building and repair activities. This tool helps facilities track production activities and determine if a license may be required.
There are two parts to the tool:
If you have any questions, please contact Air Licensing Staff at (207) 287-7688 or DEP-Air-Licensing-Help@maine.gov. You may also contact the Office of Assistance at (800) 789-9802 or (207) 287-7881.
The following resources are available for use for both major and minor stationary sources.
- NSPS Subpart Dc Semiannual Report Form - For facilities who operate oil-fired boilers subject to the semiannual reporting requirements per 40 C.F.R. Part 60, Subpart Dc.
- Relocation Notification - Facilities with portable equipment must notify the Department when that equipment moves between physical addresses. See Relocation Notification FAQ document for more information.
- Small Stationary Reciprocating Internal Combustion Engines (RICE) - Guidance on requirements for stationary engines smaller than licensing thresholds.