"Affiliated interest" means a person or corporation as defined in RCW 81.16.010.

"Business days" means the same as defined in WAC 480-07-120 (Office hours).

"Control" means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of a company, whether through the ownership of voting shares, by contract, or otherwise.

"Hazardous liquid pipeline companies" or "pipeline company" means any hazardous liquid pipeline company regulated as a common carrier under Title 81 RCW.

"Investment grade" means a pipeline company whose corporate credit/issuer rating is in one of the four highest rating categories of either Standard & Poor's L.L.C. or Moody's Investors Service, Inc.

"Nominations" means the method a shipper uses to reserve pipeline capacity for shipments.

"Proration" means the method the carrier uses to allocate space to shippers when nominations exceed the pipeline capacity.

"Subsidiary" means any company in which the pipeline company owns directly or indirectly five percent or more of the voting securities, unless the pipeline company demonstrates it does not have control.