Back in November Cass Sustein considered the 2 for 1 regulation executive order (emphasis added):
Donald Trump promises to impose, soon after his inauguration, a new requirement on federal agencies: If they want to issue a new regulation, they have to rescind two regulations that are now on the books. The idea of “one in, two out” has rhetorical appeal, but it’s going to be extremely hard to pull off.
In the abstract, of course, it sounds like a gimmick, and it’s a pretty dumb idea. As presidents from Ronald Reagan to Barack Obama have recognized, the real question is whether regulations, whether new or old, are justified. That requires a careful analysis of their costs and their benefits. ...
The conclusion? In theory, “one in, two out” is silly, and in practice it’s likely to be a bit of a mess. It’s hardly the most sensible approach to regulatory reform. But with a little flexibility, and a lot of determination, executive branch officials might be able to make it work.
Read the guts for yourself, but I can't find any justification for the last line.