(a) A cargo pump unit that fills or discharges a portable tank must be--
(1) Constructed of materials that are compatible with the product to be pumped; and
(2) Designed to be compatible with the hazard associated with the product to be pumped.
(b) The cargo pump power unit must be--
(1) Diesel;
(2) Hydraulic;
(3) Pneumatic; or
(4) Electric.
(c) The starting system for a cargo pump power unit must be designed to be compatible with the hazard associated with the product to be pumped.
(d) A diesel engine that is used to drive a cargo pump must have a spark arrestor on the exhaust system.