Air permitting is a complex and often confusing process especially for new businesses with limited resources and little permitting experience.

The best way to begin the process of understanding what air permits may apply to your facility is to familiarize yourself with the applicable air laws and regulations; primarily state and federal air permitting regulations and emissions standards.

Has every source of air contaminants been identified?

It is your responsibility to review each process, understand associated air emissions and determine if your emissions require a permit. Be sure to consider emissions of nitrogen oxides, volatile organic compounds, sulfur dioxide, particulate matter (PM-10 and PM-2.5), carbon monoxide, greenhouse gases, and hazardous air pollutants (HAPs). At this time there are 187 HAPs controlled by the EPA and they can be found at http://www.epa.gov/ttnatw01/orig189.html

Is there an emissions inventory of actual and potential emissions from each source of air contaminants?

Emission inventories are used by emitters as well as regulators to establish significant emission sources and trends, calculate air quality using dispersion modeling and direct regulatory action as needed. EPA provides emissions inventory guidance at http://www.epa.gov/ttnchie1/publications.html

Is the facility a “major source”?

Different source categories have different levels of regulatory responsibility primarily based upon the annual quantity of air emissions. EPA’s definition of “major source” for pollutants other than HAPs varies based on the applicable permit program. Therefore, you must review permitting regulations to determine if a facility is a major source. For more information go to http://www.epa.gov/airquality/permjmp.html

EPA defines “major sources” as those “that emit 10 tons per year of any of the listed toxic air pollutants, or 25 tons per year of a mixture of air toxics.” Similarly, “area sources” are defined as “smaller size facilities that … emit less than 10 tons per year of a single air toxic or less than 25 tons per year of a combination of air toxics.”

The above questions may help new facilities identify the need for air permits but once permits are obtained, there are many additional items to track and maintain to stay in compliance with your current permit, and/or to determine the need for new or amended permits. Here are a few questions that apply to ongoing permit compliance:

  • Has the facility implemented any production changes that would alter its air emissions and thus the condition under which any air quality permit was issued?

Production process changes can often result in changes in air emissions, both negatively and positively, but either way, it is important that the permit for that source be reviewed in light of any process changes.  Because different states and local air authority programs have different regulations, you should review your current operating permit and contact the appropriate agency for guidance on filing a permit modification.

  • Are the appropriate workers trained to properly comply with permit conditions and applicable regulations?

Permits cover a lot of requirements, not the least of which is training employees to understand the conditions associated with the permit and the regulations that apply. In addition, the Clean Air Act (CAA) under section 112(r)(1), known as the “general duty” clause, requires facilities that produce, process, handle, or store any substance listed under the federal Risk Management Program or other extremely hazardous substance, to identify hazards that may result from the release of these chemical, including :

  1. Identifying all hazardous chemicals used or produced at the facility;
  2. Identifying the hazards associated with the chemicals using proper hazard assessment and techniques;
  3. Designing and maintaining a safe facility for processes that involve hazardous chemicals; and
  4. Taking appropriate measures to prevent releases and minimize the consequences of any accidental release that may occur.

Additional information regarding the CAA Risk Management Program (RMP) can be found at http://www2.epa.gov/rmp

If your facility is new or you have a new source of emissions you may also need to comply with New Source Performance Standards (NSPS) under 40 CFR part 60. These technology based standards apply to specific categories of stationary sources and have additional requirements for covered facilities. 40 CFR part 60 can be found at http://www.ecfr.gov/cgi-bin/text-idx?tpl=/ecfrbrowse/Title40/40cfr60_main_02.tpl

For more information or assistance with your Environmental and Health & Safety regulatory compliance needs, contact Ralph Carito at Total Environmental & Safety, LLC (Total) at rcarito@TotalEnviron.com or 908-442-8599.