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Air Emission Measurement Center (EMC)
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EMC Recent Additions

  • April 2022 - Proposed Revisions to Test Methods and Performance Specifications for Air Emission Sources
    • Proposed Rule (pdf) (4/26/2022)
    • Fact Sheet (pdf)
  • August 2020 - Revisions to Test Methods and Performance Specifications for Air Emission Sources
    • Final Rule (FR Notice) - October 7, 2020
    • Fact Sheet (PDF)
  • December 2019 - Proposed Revisions to Method 23 for the Determination of Polychlorinated Dibenzo-P-Dioxins and Polychlorinated Dibenzofurans from Stationary Sources
    • Proposed Rule (FR Notice)
    • Fact Sheet (PDF)
  • December 2019 - Proposed Revisions to Testing Regulations for Air Emission Sources
    • Proposed Rule (PDF)
    • Fact Sheet (PDF)
  • November 2018 - Revisions to Testing Regulations for Air Emission Sources
    • Final Rule (PDF) - November 5, 2018
    • Fact Sheet (PDF)
  • September 2018 - Optical and Remote Sensing for Measurement and Monitoring of Emissions Flux of Gases and Particulate Matter (September 1, 2018)
  • March 2018 - Revisions to Method 301: Field Validation of Pollutant Measurement Methods from Various Waste Media - Final Rule (March 20, 2018) 
  • January 2018 - Proposed Revisions to Test Methods - FR Notice (January 26, 2018)
  • August 2017 - Proposed Revisions to EPA Method 202
  • November 2016 - Policy Memo on Overlapping or Staggered Test Runs has been added as Guideline Document 53
  • November 2016 - Clarification of Requirements for Method 303 Certification Training - Final Rule
  • November 2016 - Revisions to Method 301: Field Validation of Pollutant Measurement Methods from Various Waste Media - Proposed Rule
  • November 2016 - Revisions to Procedure 2:  Quality Assurance Requirements for Particulate Matter Continuous Emission Monitoring Systems at Stationary Sources - Direct Final and Proposed Rules
  • August 2016 - Revisions to Test Methods and Testing Regulations; Final Rule, 8/30/2016 (PDF)(28 pp, 993 K, About PDF)
  • July 2016 - Partial Withdrawal notice for Direct Final for PS 18 and Procedure 6 (PDF) (5 pp, 47 K, About PDF)
  • May 2016 - Technical Amendments to Performance Specification 18 and Procedure 6
    • Direct Final Rule (PDF) (6 pp, 217 K, About PDF) - Federal Register - May 19, 2016
    • Parallel Proposed Rule (PDF) (5 pp, 203 K, About PDF) - Federal Register - May 19, 2016
  • April 2016 - Direct Final Withdrawal notice for Method 303 (PDF) (1 p, 182 K, About PDF) - Federal Register - April 20, 2016
  • March 2016 - Method 202 Best Practices Handbook and appendices are now available
  • February 2016 - Clarifying Requirements for Method 303 Certification Training, Published in the Federal Register February 25, 2016
    • Direct Final Rule (PDF)(4 pp, 253 K, About PDF)
    • Parallel Proposal (PDF) (4 pp, 242 K, About PDF)
    • Fact Sheet (PDF) (2 pp, 19 K, About PDF)
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Last updated on April 26, 2022