Scheduled Maintenance - Online Payments and Public Comments

Our online payments and public comment services will be unavailable from 2:30 - 6 p.m. on Tuesday, Aug. 9 for scheduled maintenance.

Electronic Filing

You may file certain documents electronically with the commission, including: rulemaking comments, annual reports, new tariffs, time schedules, contracts and pleadings in adjudicated cases, and transportation permit applications.

File online at

If you are filing a tariff, you must preregister by submitting an authorization letter (Authorization sample letter)

All electronically-filed documents must comply with the appropriate WAC's and RCW's.

Select link to appropriate industry or document type for more information on e-filing.

 ​How to name your file