Notice of Broadly Applicable Alternative Test Methods

"Broadly applicable alternative test method approval decisions that the Environmental Protection Agency has made under and in support of the New Source Performance Standards and the National Emission Standards for Hazardous Air Pollutants. Although we have made both site-specific and broadly applicable alternative test method approvals in the past, most recently we have issued only site- or facility-specific approvals. This notice announces our plan to issue broadly applicable alternative test method approvals in the future. . . . .  (more info)