OAR Policy and Guidance Metarecord
Particulate Matter Monitor Collocation Requirements: Direct Final Rule with Parallel Proposal: Fact Sheet
|Signed by: Unsigned
Emissions, Monitoring, and Analysis Division (OAQPS) / Peter Tsirigotis
EPA Document Number:
EPA is taking direct final action (with a parallel proposal) to amend the national ambient air quality standards for particulate matter. This rule reduces to 15% the requirement that reporting organizations collocate 25% of State and local air monitoring station (SLAMS) sites with a second sampler in order to estimate precision at a reporting organization level. This file is a fact sheet about the direct final rule.