The pending merger between Paramount Global and Skydance Media was formally approved by the Trump administration on Thursday, concluding months of regulatory uncertainty.

The deal, which came under intense scrutiny by the Trump administration, was hailed by the F.C.C. chief, who welcomed “significant changes” at CBS, a unit of Paramount.

Paramount Global’s merger with Skydance Media was approved by the US Federal Communications Commission, which backed the deal after the Trump administration extracted concessions on the news and entertainment company’s political coverage and diversity practices.