The term most frequently refers to the New Source Performance Standards mandated by the U.S. Environmental Protection Agency (EPA) .
While the specific string does not appear as a single documented technical standard in current official databases, its components strongly suggest a context involving environmental monitoring or automated land surveying reporting. NSPS-91503:08:36 Min
These are technology-based standards designed to limit emissions from new, modified, or reconstructed industrial facilities . The term most frequently refers to the New