nearly any LTL you hire on with will "teach you". as long as you have the doubles endorsement, which nearly all of them require.
although this is NOT a union board, i will say this much, i worked for NEMF out of 02. i was in Elizabeth, NJ (the home terminal at the time). i was about ready to leave to come back home. another driver, did not have the doubles endorsement, (and he was a driver from another terminal) for at least 6 months. (and IN the union) and he down right said, he "refuses to get the endorsement".
dispatch was about to give me the doubles, and i yapped about it, that we are ALL REQUIRED to have the doubles endorsement, and that acehole doesn't...???? i "pulled rank" with my seniority, and got a 53 footer instead. the Elizabeth shop steward was there in fact, as i was biotching, and he stood by me as i was right.
needless to say, that driver, he didn't like me after that, but screw it, if WE ALL HAVE TO HAVE the endorsement, that meant him too..>!!!
I put in a grievance to the union (at thier HQ, as he was NOT complying with the union/company rules regarding the endorsement). i had heard that driver quit after that.
again, screw him.