US environmental regulators change how they store Wisconsin's air quality rules

The US environmental regulators are changing the way they organize and store Wisconsin's air quality rules. This means the rules themselves are not changing, only the format of the official record.

This document is about administrative housekeeping. It does not change any actual environmental regulations or enforcement. It simply updates how the official record of Wisconsin's air quality plan is kept, moving from paper documents to a digital, incorporated-by-reference system.