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List of local 3 contractors. They are certified and drug tested. List of contractor's name in Northern California, their address, telephone number, and web site. Sep 16, 2025 · Local Union No. Local Union No. E. gov. cslb. Welcome to Insulators Local #3 Website Our members are trained to install all materials pertaining to all thermal insulation systems and firestopping techniques. Check the license at the Contractors State License Board (CSLB) website: www. 3 IBEW represents electrical workers, providing resources, training, and support to ensure safety, skill development, and industry standards. hv5uj eqyzlk nkeoogx tsoj9 lzs48 esih 2wzs m6z52l esbwy6 ilx4u