The EPA is approving the Particulate Matter contingency measures State implementation plan (SIP) revisions submitted by the State of Ohio on July 17, 1995. This submittal addresses the Federal Clean Air Act requirement to submit contingency measures for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM) for the areas designated as nonattainment for the PM National Ambient Air Quality Standards (NAAQS). In Ohio, Cuyahoga County and portions of Jefferson County are designated as nonattainment for PM. Contingency measures are emission reductions which are to be implemented, with no further action, in the event that an area fails to meet air quality standards. This submittal would result in an emissions reduction of 34 pounds of PM per hour in Cuyahoga County, and 2.9 pounds of PM per hour in Jefferson County if implementation of the contingency measures becomes necessary.