sign something off BrE
sign off on something AmE

And, often as not, their companies sign off on the deal.

"Everybody knows what needs to be done; the question is will she sign off on it."

Only last month, he signed off on another big tax cut.

Last year the Americans signed off on a budget of $257m.

He signed off the show for the last time on March 29, 1962.

"You just want me to make the best deal I can, and you'll sign off on it?"

They signed off on the building; we started working here.

New Jersey would have to sign off on parts of the project.

The federal prosecutor needed to sign off on it, which is where I came in.

The board is expected to sign off on it when a few issues are resolved.