Zac joined AFSCME Council 65 as a Labor Representative in June 2023. He represents the following local unions:

• Local 0105-0072 Alomere Health
• Local 0210-0002 Breckenridge School
• Local 0210-0004 New York Mills School
• Local 0210-0005 Breckenridge City
• Local 0210-0007 Wilkin County
• Local 0210-0010 Frazee School
• Local 0210-0011 West Central School
• Local 0487-0001 Douglas County
• Local 0487-0002 Alexandria Lake Area Sanitary District
• Local 0568-0001 Detriot Lakes City
• Local 0568-0002 Becker County
• Local 0568-0003 Detroit Lakes School
• Local 0881-0001 Becker County DAC
• Local 1149-0000, 0001 Lake Region Hospital
• Local 1450-0001 Moorhead City
• Local 1450-0002 Moorhead School
• Local 1500 District Courts
• Local 1830-0002 Grant County
• Local 2022-0012 Horizon Public Health
• Local 2022-0013 Minnewaska School
• Local 2022-0014, 0016 Starbuck City
• Local 3064-0001, 0002 Norman County
• Local 3064-0003 Ada City
• Local 3262-0000 Lake Agassiz Regional Library