Ohio EPA has issued its final air pollution shale oil and gas well-site general permit. "This general permit covers all operations involved in an oil and gas well site during the production phase of the well. This includes glycol dehydration units, natural gas and diesel engines, storage tanks, flares, and ancillary equipment." You can view it and supporting documentation here.
Note: Ohio EPA's Assistant Chief of Permitting wants to remind you that "if you previously submitted a letter stating that you were going to put a well into production and planned to apply for the general permit when it becomes available, now is the time for you to submit your application."