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Clean Air Act Engineer

Eastern Research Group Inc.· Consulting Services – Engineering and Science
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Hybrid (Remote / Fairfax, VA / Washington, DC / Arlington, VA / Alexandria, VA)$90k - $120kFull-timePosted 4d ago

About the role

ERG is seeking a highly qualified Clean Air Act Engineer with strong management, organizational, and communication skills and a background in Clean Air Act permitting and enforcement. The role involves air dispersion modeling, permit drafting/review, regulatory research, and mentoring, within a fast-paced consulting environment.

Responsibilities

  • Perform, review, and evaluate air dispersion modeling analyses using AERSCREEN, AERMOD, including: modeling applicability determinations, identifying meteorological data, establishing source parameters and emissions rates, background concentrations and nearby sources, NO to NO2 conversion, and PSD/ NAAQS compliance.
  • Perform toxic air pollutant evaluations using AERSCREEN and other screening tools.
  • Draft Clean Air permits (minor source, Title V, PSD, major nonattainment) and ensure compliance with SIP-approved rules, EPA regulations, and applicable statutes.
  • Review proposed permits from State/local agencies for conformity with regulations and policy (applicability determinations, potential to emit, monitoring, control technologies).
  • Draft and review control technology determinations (BACT and LAER).
  • Review draft regulations to ensure conformance with EPA requirements.
  • Research alternative approaches to compliance with EPA regulations based on similar State rules.
  • Mentor and provide guidance to less experienced staff.
  • Manage multiple projects and small project teams.
  • Collaborate with clients and internal stakeholders.
  • Prepare clear, thorough technical documents and reports.

Qualifications

  • B.S. or M.S. in Engineering, preferably Civil, Mechanical, Chemical, or Environmental
  • Solid knowledge of Clean Air Act laws and regulations as they pertain to permitting
  • Minimum of five years of experience completing, reviewing, and/or evaluating air dispersion modeling analyses
  • Proficiency in AERMOD, AERSCREEN, AERMET, AERSURFACE, and familiarity with EPA’s Guideline on Air Quality Models (40 CFR Part 51, Appendix W)
  • Experience with VISCREEN, CALPUFF, and/or other visibility models preferred
  • Minimum of five years of experience implementing Clean Air Act regulations, including drafting and/or reviewing permits or permit applications
  • Proficiency in Microsoft Excel and Word
  • Strong writing and communication skills, with the ability to present project findings effectively to a variety of stakeholders
  • Excellent time management skills, with the ability to manage multiple projects simultaneously, meet tight deadlines, and deliver high-quality client-ready work

Skills

Required:Air dispersion modelingRegulatory knowledge (Clean Air Act)Permit drafting/reviewProject managementCommunication

Benefits

  • Health and dental insurance
  • Life insurance
  • Long-term disability
  • Educational benefits
  • FSAs
  • Generous 401k plan
  • Profit sharing
  • Employee Assistance Program (EAP)
  • 11-20 paid vacation days per year
  • 10 paid holidays per year
  • Sick leave (56 hours or more per year, state dependent, pro-rated for part-time)
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Eastern Research Group Inc.

Helping our clients protect public health and the environment, improve worker health and safety, ensure the safety of food and drugs, plan and design facilities, advance national security, and achieve other positive outcomes.

ERG helps clients protect the environment, improve worker health and safety, ensure the safety of food and drugs, and plan sustainable facilities.

environmental consultingpublic healthsustainabilityresiliencewater qualityair qualityecological serviceswaste management
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