Exemption under the benzene standard for oil and gas drilling operations.

OSHA interpretation letter responding to a union inquiry on whether oil and gas drilling production and servicing operations are exempt from the Benzene Standard, 29 CFR 1910.1028. It describes crude oil processing through separators, heaters, dehydrators and pumps, and concludes the described operation is exempt under 1910.1028(a)(2)(vi).