Union apprenticeship sign-ups near Baltimore after 10 years as a machine operator

I heard of an apprenticeship with paid on-the-job training for people changing careers. Thank you in advance. Classes are in the evening and work is during the day. Did anyone go through it?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.

The aptitude test was mostly maths and reading a diagram. Free practice tests online were enough for me.