My background check says misdemeanor Exception-Major for a bad check in 1991

I see. Well what is your question, but passing bad checks a serious offence and it won't go away from a background check.

Its always going to be on your record... as was mentioned.. this is a serious offense. People can go to jail for it.

Depending on where this occurred, normally there is a dollar value, for levels of the offense.

it will always show up on your record,