Legally a contractor cannot employ someone to do electrical work for them unless they are a registered 309a apprentice working with a journeyman or have a 309a license. This is because contractors work in various places that are accesable to the general public. A 309 is a regulated lisence as well and this is done by renewal every 3 years.
A 442 license is not requlated and never neads to be renewed. You are limited to working for industrial facilities. I aquired my 309a first and then after meeting the requirments challenged to 442a and received it as well.
