Welcome!

The Washington-Idaho Operating Engineers Trust Funds were established to provide medical and retirement benefits and apprenticeship training for their eligible members and their dependents through the collective bargaining process.

This site provides general benefit information, forms and other Trust related items. Summary of Benefits and Coverage (SBC) and Glossary of Terms can be reviewed here.

This site covers the following trusts:

  • Washington-Idaho Operating Engineers Employers Health & Security Trust Fund
  • Engineers-AGC Retirement Trust of the Inland Empire
  • Western States Operating Engineers Institute of Training Apprenticeship & Training Trust.

For information on the Idaho Operating Engineers Pension Trust Fund, click here. Alternatively, you can navigate to the Idaho Operating Engineers Pension Trust Fund by clicking “Idaho Pension Trust” at the top right of the page.

Membership Meetings in March and April, 2020 – Coming to a City Near You!

The Trustees would like to invite you and your spouse to attend Benefit meetings to be held in the months of March and April in different cities close to you. The purpose of these meetings is to share information with you about the operation of the Health & Welfare and Retirement Plans.

There will be presentations on both plans and personnel will be available to answer any questions you may have regarding your medical coverage or your retirement plan. We look forward to sharing this information with you and having the opportunity to answer your questions at the following meetings.

To find the meeting nearest to you, click here to see the list of meetings and locations.


January 2020 – Affordable Care Act (ACA) Tax Provisions

Are you getting ready to file your 2019 federal income tax return? The Administration Office will be mailing the Form 1095-B by March 1, 2020. The form will identify if you and your family had qualifying health coverage for part or all of 2019. Please check to make sure the information on the form is accurate and keep it with the rest of your tax documents.

It is not necessary to wait for the Form 1095-B to file your taxes. Just like last year, you can check a box on your tax return, verifying you had qualifying health coverage.

If you have any questions regarding Form 1095-B, please contact the Administration Office at (800) 351-6480 , option 4.


2018 Claim Processing Change Effective June 1, 2019

To:All Plan Participants
Washington-Idaho Operating Engineers-Employers

Health and Security Trust Fund

As you know, Welfare & Pension Administration Service, Inc. (WPAS) became the new Administrator for the Washington-Idaho Operating Engineers-Employers Health and Security Trust Fund effective January 1, 2019. WPAS has been processing medical and dental claims for all claims incurred on or after January 1, 2019. Zenith has been processing claims with a date of service of December 31, 2018 and prior.

Effective June 1, 2019, all claims, dental, Medicare medical, retiree prescription drug, and self-paid medical claims, regardless of date of service, should now be directed to WPAS, Inc. at the following address:

WA-ID Operating Engineers
c/o WPAS, Inc.
PO Box 34567
Seattle, WA 98124-1567

If you have questions regarding claims or benefits, please contact WPAS (800) 351-6480, option 1 or (206) 441-7574 between the hours of 8:00 a.m. – 5:00 p.m. PST.

Board of Trustees
Washington-Idaho Operating Engineers-Employers
Health and Security Trust Fund


New Administrator Effective January 1, 2019

Effective January 1, 2019, Welfare & Pension Administration Service, Inc. (WPAS) has been selected as the new Administrator for the Washington Idaho Operating Engineers-Employers Trust Funds (the “Funds”). WPAS will assume responsibility for processing contributions and reconciling payments among other duties determined by the Board of Trustees. All participants covered by the Funds have been notified of the change in administration offices.