The Environmental Protection Agency (EPA) is announcing a public hearing to be held for the proposed action titled, ``Air Plan Partial Approval and Partial Disapproval; AK, Fairbanks North Star Borough; 2006 24-hour PM<INF>2.5</INF> Serious Area and 189(d) Plan'' which was published in the Federal Register on January 10, 2023. The EPA is also announcing the extension of the comment period for the proposed rulemaking to allow for sufficient time after the public hearing for commenters to submit comments.