Union apprenticeship sign-ups near Salt Lake City after 3 years as an office manager

I heard of an apprenticeship with paid on-the-job training for people changing careers. The application needs a diploma or equivalent, a driver's licence and a short aptitude test. Did anyone go through it?

Thanks for writing this out. I went through something close to it 10 months ago, and it got easier once I kept a simple log of every call and form.