descriptions and maps of jurisdictions are provided for local unions with inside/outside classifications. Descriptions and some maps are in. pdf format and will. the ibew local 743 holds jurisdiction in southeastern pennsylvania. The counties included are berks, schuylkill, lancaster, chester and montogomery. Use this interactive map to. there is a directory (is have to search for it) that has the main info for each local but it's a pain to navigate. The closest you'll be able to find is the tramp book which your local. find local businesses, view maps…