The Environmental Protection Agency (EPA) has released a notice regarding the approval of several broadly applicable alternative test methods, which were decided upon in 2020. These methods can be used by source owners and operators as a substitute for required test methods in monitoring emissions, under certain regulations. The notice emphasizes that using these alternative methods is optional and provides details on where to access the approval documents for these methods. Additionally, the notice includes an announcement about the removal of one alternative test method, ALT-109, after its recommended practices were integrated into an existing method.
Simple Explanation
The EPA has approved new ways to check how clean the air is, and people can choose to use these new methods to do the tests. They also stopped using one old way because it got mixed into a better method.