Delegated Order Accepts Northwest Pipeline Revised Tariff Record for South Seattle Delivery Lateral Expansion Project

FERC accepted Northwest Pipeline LLC's revised tariff record to update annual incremental facility charges for the South Seattle Delivery Lateral Expansion Project. The delegated order was issued on March 12, 2026, under Docket RP26-551-000.

For energy companies and gas shippers using Northwest Pipeline's system, this order establishes updated facility charges that may affect transportation costs. The order represents a routine tariff acceptance with no new compliance obligations imposed on affected parties beyond existing tariff terms.