EMC Recent Additions

• February 2024 - Proposed Revisions to Method 320 - Measurement of Vapor Phase Organic and Inorganic Emissions by Extractive Fourier Transform Infrared (FTIR) Spectroscopy  
  • Fact sheet for EPA Method 320 – Measurement of Vapor Phase Organic and Inorganic Emissions by Extractive Fourier Transform Infrared (FTIR) Spectroscopy (pdf) (241.93 KB)
  • Federal Register Notice - March 1, 2024 (pdf) (744.96 KB)
• March 2023 - Testing Provisions for Air Emission Sources  
  • Testing Provisions for Air Emission Sources Final Rule (pdf) (1.88 MB) - Signed March 7, 2023
  • Testing Provisions for Air Emission Sources Fact Sheet (pdf) (157.95 KB)
  • Final Rule Corrections Notice (pdf) (169.12 KB, 4/20/2023)
• March 2023 -  Revision to Method 23 for the Determination of Polychlorinated Dibenzo-P-Dioxins and Polychlorinated Dibenzofurans from Stationary Sources
  • Revision to Method 23 Final Rule (pdf) (1.35 MB) - Signed March 7, 2023
  • Revision to Method 23 Fact Sheet (pdf) (151.77 KB)
• April 2022 - Proposed Testing Provisions for Air Emission Sources 
  • Proposed Testing Provisions for Air Emission Sources Proposed Rule (pdf) (836.11 KB, 4/26/2022)
  • Proposed Testing Provisions for Air Emission Sources Fact Sheet (pdf) (102.96 KB)
• October 2020 - Revisions to Test Methods and Performance Specifications for Air Emission Sources
  • Revisions to Test Methods and Performance Specifications for Air Emission Sources Final Rule (FR Notice) (pdf) (1,510 KB) - October 7, 2020
  • Revisions to Test Methods and Performance Specifications for Air Emission Sources Fact Sheet (pdf) (115.16 KB)
• December 2019 - Proposed Revisions to Method 23 for the Determination of Polychlorinated Dibenzo-P-Dioxins and Polychlorinated Dibenzofurans from Stationary Sources
  • Proposed Revisions to Method 23 Proposed Rule (FR Notice) (pdf) (1,101 KB)
  • Fact Sheet: Proposed Revisions to EPA Method 23 – Determination of Polychlorinated Dibenzo-p-Dioxins and Polychlorinated Dibenzofurans from Stationary Sources (pdf) (186.05 KB)

• December 2019 - Proposed Revisions to Testing Regulations for Air Emission Sources
  • Proposed Revisions to Testing Regulations for Air Emission Sources Proposed Rule (pdf) (780 KB)
  • December 2019 - Fact Sheet - Proposed Test Method updates (pdf) (133.24 KB)

• November 2018 - Revisions to Testing Regulations for Air Emission Sources
  • 2018 Revisions to Testing Regulations for Air Emission Sources (pdf) (769.55 KB)  
  • 2018 Revisions to Testing Regulations - Fact Sheet (pdf) (130.03 KB)

• 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 KB)

• July 2016 - Partial Withdrawal notice for Direct Final for PS 18 and Procedure 6 (pdf) (47.44 KB)

• May 2016 - Technical Amendments to Performance Specification 18 and Procedure 6
  • Technical Amendments to Performance Specification 18 and Procedure 6 Direct Final Rule (pdf) (6 pp, 217 KB) - Federal Register - May 19, 2016
  • Technical Amendments to Performance Specification 18 and Procedure 6 Parallel Proposed Rule (pdf) (5 pp, 203 KB) - Federal Register - May 19, 2016

• April 2016 - Direct Final Withdrawal notice for Method 303 (pdf) (1 p, 182 KB) - 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 KB)
  • Parallel Proposal (pdf) (4 pp, 242 KB)
  • Fact Sheet: Clarification of Requirements for Method 303 Certification Training (pdf) (18.97 KB, February 2016)
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