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The world is being quietly rearranged by people who write very long documents.

Federal Register · July 16, 2025
The title they went with Air Quality State Implementation Plans; Approval and Promulgations: Montana: Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards Noisy translates that to

Montana air quality plans must now use the newest pollution models

What happened
Montana's plan for managing air pollution must now use the most current computer models for predicting air quality. This means the state will have to update how it measures and plans for ozone pollution.
Why it matters
Every state must show the US environmental regulators that its air quality programs are up to date. This document shows Montana is now using the latest scientific tools to measure pollution. This makes it harder for polluters to argue that their emissions are not causing problems, because the models are more accurate.
The signal
Watch for other states to update their air quality plans with the newest modeling guidelines, especially those with significant industrial or urban pollution sources.
If you insist
Read the original →