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  • Ozone Nonattainment Designations  - 

    The U.S. Environmental Protection Agency (EPA) is progressing forward with implementing the 2015 ozone NAAQS (the "2015 ozone NAAQS") promulgated on October 1, 2015.This rule proposal contains three main components:Non-attainment area classification »

  • EPA's Decision to Revisit Aspects of the 2017 Regional Haze Rule Revisions  - 

    The Regional Haze Rule (RHR) calls for state and federal agencies to work together to improve visibility across the 156 national parks and wilderness areas listed in the rule. RHR calls for states to establish goals and emission reduction strategies »

  • New EPA Guidance Allows NSR Project Netting  - 

    On March 13, 2018, U.S. EPA Administrator Scott Pruitt issued a new guidance memo on New Source Review (NSR) pre-construction permitting. The memo outlined “Project Emissions Accounting,” a procedure which allows for project emissions decreases to »

  • 40 CFR Part 63 NESHAPs  - 

    40 CFR Part 63 NESHAPs40 CFR Part 63 NESHAP (MACT) Source CategoriesMajor Source RequirementsArea Source RequirementsAcrylic/Modacrylic FibersSubpart YYSubpart LLLLLL (6L)AerospaceSubpart GG**Asphalt Processing and Asphalt Roofing »

  • Estimating Tank Emissions - Changes May Be Coming  - 

    The U.S. Environmental Protection Agency (EPA) is currently reviewing draft revisions to its guidance for estimating emissions from storage tanks as published in Chapter 7.1 of EPA's AP-42 document.1 This guidance presently addresses emissions from »

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Spotlight
Upcoming Classroom Training
Air Quality Permitting in New Mexico - Bernalillo County

- Albuquerque, NM

NSR/PSD Compliance Workshop

- Richmond, VA

Practical Air Dispersion Modeling Workshop

- Los Angeles, CA

more training