Stack Test Notifications and Testing Resources

The Air Planning and Assessment Division - Stack Testing Group provides source testing guidance for the regulated facilities in Louisiana. The following information presents guidelines and policies of the LDEQ Emissions Testing Program. It consists of the test procedures for industrial plants, oil and gas operations, and other related manufacturing facilities. EPA test methods and procedures are followed by companies who conduct stack testing in Louisiana. Stack testing companies must also be certified by the Louisiana Environmental Laboratory Accreditation Program (LELAP). The guidelines cover all aspects of compliance stack testing in Louisiana, including initial notification, execution of the stack test, submittal of the stack test report, and final approval by LDEQ. It also covers responsibilities of company representatives and contractors or consultants. 

Questions related to the Louisiana Fugitive Emission Program Consolidation Guidelines should be directed to Kyle Prestenbach in the Air Permits Division. 

Use the online Stack Testing Notification Tool to submit your notification and protocols. A copy will be sent directly to the Stack Testing Group and the appropriate regional office. There is no need to submit notifications or protocols by mail.

NEW!! As of January 1, 2026, LDEQ will no longer send letters after review of stack test results, except in the instance of unsatisfactory testing.  

 Click Here to Access the Stack Test Notification Tool 

• EPA's Delegation of Authority to DEQ
• EPA Emission Measurement Center (EMC)
• Measurement System Performance Specifications
• Glycol Dehydrators - Applicable Rules and Test Methods
• Flash Gas Calculation Methods   

 Testing Guidance Links Below:

• Engine and Turbine Testing Guidance
• Sugar Mill Boiler Testing Policy
• Performance Test Procedures
• Required Format for Test Reports 
• Abrasive Blasting - Presentation on LAC 33:III Chapter 13 Subchapter F

If you have any questions regarding Stack Test guidance, please call Vennetta Hayes (225) 219-3412