Environmental Protection Agency December 5, 2024 – Federal Register Recent Federal Regulation Documents

The Environmental Protection Agency (EPA) is approving revisions to the Idaho State Implementation Plan (SIP) submitted on May 8, 2023, and May 13, 2024. The revisions update the adoption by reference of specific Federal standards and reference methods and streamline the Idaho air quality regulations by repealing outdated provisions, striking duplicative terms, and simplifying rule language.

The Environmental Protection Agency (EPA or Agency) is announcing the availability of and requesting comment on EPA's proposed updates to the mitigation in the interim registration review decision for atrazine (Case Number 0062). The updated mitigation proposal for atrazine reflected in the memorandum being released for comment incorporates the revised level of concern of 9.7 micrograms per liter ([micro]g/L) as well as corrections to exposure modeling and feedback received during the 2022 public comment period. EPA is releasing its updated mitigation proposal to reduce run-off/erosion, which will expand the number of options of mitigation measures growers can choose to implement to reduce potential exposure and risk to aquatic plant communities from atrazine runoff in vulnerable watersheds. The proposal includes placing mitigations on the product labeling, directing users to EPA's mitigation menu website and to the Bulletins Live! Two system. The Agency is not soliciting comment on any other aspects of the atrazine interim registration review decision.