Regulation & law · 14/11/2000Updated: 10/17/2026 · 1 min read
EPA Approves New Hampshire Air Quality Implementation Plan
Summary
The Environmental Protection Agency (EPA) has approved revisions to New Hampshire's State Implementation Plan (SIP), which includes regulations and emission quantification protocols to reduce nitrogen oxide emissions in the Ozone Transport Region (OTR) of the northeastern United States, as part of a regional reduction program.