The Environmental Protection Agency (EPA) proposed amendments to the regulations governing water quality standards. The amendments would update the biocriteria narrative portion of the rules to remove a U.S. EPA objection to the current rule, incorporate a memorandum of understanding between Ohio EPA and U.S. EPA that was signed in 2000, and eliminate the obsolete limited warmwater habitat use designation. A hearing will be held October 16, 2023. Comments are due the same date. See https://www.registerofohio.state.oh.us/hearings/hearingsSearch/results/831544/345603.