Mobile refuelers are now exempt from the following sized secondary containment provisions that still apply to all other bulk storage containers and mobile/portable bulk storage containers:

• Sections 112.8(c)(2) and (11) for petroleum oils
• Sections 112.12(c)(2) and (11) for animal fats and vegetable oils

These provisions previously required sized secondary containment for mobile refuelers, such as a dike or catchment basin, of sufficient size to contain the capacity of the largest compartment or container on a mobile refueler along with enough room to contain precipitation.  The exemption does not apply to refuelers used primarily for the bulk storage of oil in a fixed location in place of stationary containers (e.g., a refueler that no longer can move or conduct transfers and is left only to serve as a bulk storage container).