I think you usually join a local union serving a specific subset of construction. Filling jobs is a major part of what the union does for you. Ages ago my dad

I think you usually join a local union serving a specific subset of construction. Filling jobs is a major part of what the union does for you. Ages ago my dad worked concrete construction back in IL. I was young and didn't pay much attention, but I recall him referring to "the hall" as where he'd go to find work. Google search turned up this: https://www.nlrb.gov/about-nlrb/rights-we-protect/the-law/employees/hiring-halls https://www.nlrb.gov/about-nlrb/rights-we-protect/the-law/em...