(a) The owner or operator shall equip each transfer rack with either one of the following equipment:

(1) A closed vent system which routes the regulated material vapors to a control device as provided in §65.83(a)(1) and (2).

(2) Process piping which routes the regulated material vapors to a process or a fuel gas system as provided in §65.83(a)(4), or to a vapor balance system as provided in §65.83(a)(3).

(b) Each closed vent system shall be designed to collect the regulated material displaced from tank trucks or railcars during loading and to route the collected regulated material to a control device as provided in §65.83(a)(1) and (2).

(c) Process piping shall be designed to collect the regulated material displaced from tank trucks or railcars during loading and to route the collected regulated material vapors to a process or a fuel gas system as provided in §65.83(a)(4), or to a vapor balance system as provided in §65.83(a)(3).

(d) Each closed vent system shall meet the applicable requirements of §65.143.

(e) If the collected regulated material vapors are routed to a process or a fuel gas system as provided in §65.83(a)(4), then each owner or operator shall meet the applicable requirements of §65.142(c).