Union apprenticeship sign-ups near Seattle (update)

I heard of an apprenticeship with paid on-the-job training for people changing careers. I am in Seattle, in case local advice matters. Classes are in the evening and work is during the day. How hard is the test?

You earn while you learn, but the first year is tight. Plan your budget carefully.

Bring your transcripts and any proof of work history. They asked for both in the interview.