COMMISSION AGENDA MEMORANDUM ACTION ITEM Item No. Date of Meeting DATE: March 23, 2026 TO: Stephen P. Metruck, Executive Director FROM: Greg Gauthier, Senior Labor Relations Manager 8e April 14, 2026 SUBJECT: Port of Seattle - Western Washington Cement Masons Local 528 Memorandum of Understanding to include Plasterers ACTION REQUESTED Request Commission authorization for the Executive Director to enter into an MOU with Western Washington Cement Masons & Plasterers Union Local 528, representing Cement Masons at Port Construction Services (PCS), amending the terms of the Collective Bargaining Agreement (CBA) to include Plasterers. EXECUTIVE SUMMARY The Port of Seattle and Western Washington Cement Masons Local 528 are parties to a CBA covering Cement Masons working at PCS executed on August 10, 2022, and expiring on July 31, 2027. The Western Washington Cement Masons Local 528s full title is the Western Washington Cement Masons & Plasterers Union Local 528. Though it has been historically a rare occurrence, there have been times in which PCS requires the skills of Plasterers. By amending the CBA to include Plasterers, the Port can compensate Plasterers based upon the wage and benefit rates associated specifically with their work. JUSTIFICATION RCW Chapter 41.56 requires the Port of Seattle to collectively bargain wages, hours and conditions of employment with the exclusive bargaining representative designated by the employees. DETAILS The Port can hire and compensate those employee classified as Plasterers represented by the Washington Cement Masons & Plasterers Union Local 528 and compensate them accordingly. Template revised January 10, 2019. COMMISSION AGENDA - Action Item No. 8e Meeting Date: April 14, 2026 Page 2 of 2 ATTACHMENTS TO THIS REQUEST (1) Memorandum of Understanding PREVIOUS COMMISSION ACTIONS OR BRIEFINGS August 9, 2022, Item 8i: New collective bargaining agreement between the Port of Seattle and the Western Washington Cement Masons Local 528 representing Cement Masons at Port Construction Services (PCS) Template revised June 27, 2019 (Diversity in Contracting).