Montana Fugitive Emissions regulations & environmental compliance analysis

Montana Fugitive Emissions: What you need to know

Governing Law and Regulations

Fugitive particulate matter emissions: Administrative Rules of Montana (ARM) 17.8.308

For a Limited Time receive a FREE EHS Report "Recordkeeping for EHS Managers." This special report contains a recordkeeping checklist to help you keep track of your records for major environmental laws and OSHA's Hazard Communication Standard. Download Now

Visible emissions: ARM 17.8.304

Regulatory Agency

Montana Department of Environmental Quality (DEQ) Permitting and Compliance Division Air Resources Management Bureau

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. The federal New Source Performance Standards (NSPS) and the National Emissions Standards for Hazardous Air Pollutants (NESHAP), which contain source-specific standards for the control of fugitive emissions, have been adopted and incorporated by reference into the Montana regulations. In addition, DEQ has established requirements to control fugitive particulate matter (PM) and visible emissions.

Administration and enforcement. The Air Resources Management Bureau of DEQ's Permitting and Compliance Division is responsible for administering and enforcing Montana's fugitive particulate matter and visible emissions regulations.

State Requirements


ARM 17.8.308

The following activities must take reasonable precautions to prevent emissions of PM and must comply with the applicable opacity requirements:

  • The production, handling, transportation, or storage of any material. Fugitive emissions must not exhibit an opacity of 20 percent or greater averaged over 6 consecutive minutes. PM emissions from any transfer ladle or operation involving the transfer of molten metal installed or operating prior to November 23, 1968, are exempt from the opacity limitation.
  • The use of any street, road, or parking lot.
  • The operation of a construction site or ...

Read more about Fugitive Emissions

Montana Fugitive Emissions Resources

Type Title
Forms Visible Emissions Observation Form (SFN-8441)
See all Fugitive Emissions Resources