It's interesting the way that the Congressional Review Act operates, to require both houses and the president to sign off on overruling the decision of an executive agency.
In bicameral Westminster-style systems, delegated legislation (ie. executive regulations) can usually be vetoed by either chamber. This being under the principle that if the regulation in question had been enacted as regular legislation it would have required the approval of both chambers to pass.
It's a fiction either way. There's no way to decide whether the vetoed action was in or out of scope of the original delegated authority. Maybe one chamber just changed their mind.
Well, no - the idea is that the delegated authority is simply "you may make regulations without prior approval of the legislature for the sake of expediency, but it is subject to veto so you can't use it as an end-run around the legislature".
In bicameral Westminster-style systems, delegated legislation (ie. executive regulations) can usually be vetoed by either chamber. This being under the principle that if the regulation in question had been enacted as regular legislation it would have required the approval of both chambers to pass.