Sometime recently I believe I blogged about the difficulty in undoing regulations which had been finalized after the rule-making process. The idea was, and is, that an agency needs to go back through the rule-making process in order to revoke a reg, a process which takes a while and can, in controversial cases, result in lots of comments to respond to.
That's still the case, but I'd forgotten Newt's baby, which is briefly referenced in this post.
It's the Congressional Review Act, part of Gingrich's Contract with America, which allows simple majorities in both Houses to nullify major regulations within 60 legislative days of promulgation. With divided government it hasn't been used, hence my forgetting about it. Twill be interesting to see how many of the candidates the Republican Congress actually nullifies. My bet is a minority, perhaps a small minority, unless some wiseass packages a number into one legislative act.