Related to NRA Range Source Book

Stationary source means any building, structure, facility, or installation which emits or may emit any federally regulated air pollutant.
WTO GPA country end product means an article that--
Diagnostic source assembly means the tube housing assembly with a beam-limiting device attached.
regulatory action level RBC means the product of 1.5 and its authorized control level RBC;
Minor source baseline date means the earliest date after the trigger date on which a major stationary source or a major modification subject to 40 CFR 52.21 or to regulations approved pursuant to 40 CFR 51.166 submits a complete application under the relevant regulations. The trigger date is:

NRA Range Source Book definition