Northwest Pipeline LLC NOTICE #33006 Notice of ACA Rate Change posted on Sep 1 2026 11:17AM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: N Notice Stat Desc: INITIATE Notice Type Desc: RATES AND CHARGES Post D/T: 09/01/2026 11:17 AM MCT Notice Eff D/T: 09/01/2026 11:17 AM MCT Notice End D/T: Reqrd Rsp Desc: No response required Rsp D/T: Notice ID: 26-169 Prior Notice: Subject: Notice of ACA Rate Change Notice Text:

As a customer service, Northwest is notifying its Shippers that 

the ACA rate will change from $0.0015/Dth to $0.0013/Dth 
effective October 1, 2026.

Information regarding the ACA charge can be found on the 
Commission’s website at:
https://ferc.gov/industries-data/natural-gas/overview/general-information/annual-charges

Please direct any questions to Mike Heeney at 
michael.d.heeney@williams.com or Jennifer Rowan at 
jennifer.rowan@williams.com.