The proposed rule development (OGC No. 11-0614) involves amendments to Chapter 62-210, F.A.C., to amend two definitions in the department’s air permitting rules to exclude ethanol fuel production facilities from the definition of “chemical process plant,” thereby raising the emission threshold for applicability of the state’s major source permitting rules for such facilities from 100 tons per year (TPY) of any regulated air pollutant to 250 TPY. The proposed rule amendments are consistent with U.S. Environmental Protection Agency (EPA) regulations amended May 1, 2007. The department announces that a workshop will be held at the date, time and place given below. This workshop will also serve as a State Implementation Plan (SIP) public hearing pursuant to the requirements of 40 CFR 51.102. Anyone who wishes to submit written comments on the department’s proposal to submit the proposed rule amendments, if ultimately adopted, to EPA as proposed SIP revision should do so prior to July 27, 2011, by letter or e-mail to Ms. Lynn Scearce, Department of Environmental Protection, Division of Air Resource Management, 2600 Blair Stone Road, Mail Station 5500, Tallahassee, Florida 32399-2400 or lynn.scearce@dep.state.fl.us.