Charter also promised that for seven years it would not impose data caps on broadband users who can run up big bills when watching online video, and that it would not charge companies like Netflix extra to connect to Charter customers. In addition, Charter agreed to expand its Internet footprint to two million more homes and to offer a cheaper broadband service to low-income households.

Justin Venech, a Charter spokesman, said in a statement that the conditions ensured the company’s “current consumer-friendly and pro-broadband business practices,” adding that the combined entity “will be a leading competitor in the broadband and video markets.”

Regulatory approval would be a major win for Charter, which had circled Time Warner Cable for the last three years. Comcast stepped in with a rival bid for Time Warner Cable that collapsed under regulatory pressure last year. After that, Charter announced its pair of deals for Time Warner Cable and Bright House in May 2015.

The approvals will have enormous implications on the telecommunications, media and technology ecosystem, with the combined company set to have greater influence over program pricing, new technologies in broadband infrastructure, and business models emerging in streaming video. Consumers have also come to rely on the Internet as a utility, but see prices increase with few options for providers.

The prospect of so much combined power by a few companies has drawn protests from consumer groups and some tech companies, most notably Dish Network, which fears its Sling TV streaming video services could be threatened by the Charter mergers.

On Monday, Dish declined to comment on the regulators’ move to approve the Charter deals. Dish is part of the Stop Mega Cable Coalition, which was formed to raise awareness of the harms that could result from the deals, and which on Monday said in a statement that the conditions proposed by the F.C.C. fell short of “addressing all of the threats to competition and consumers posed by this transaction.”

The coalition said Charter should be required to offer a stand-alone broadband service.

Others criticized the F.C.C.’s conditions of approval as overreaching. “At first blush, it appears that the commission may have operated well outside the four corners of the merger application to pursue unrelated matters and policies,” Michael O’Rielly, a Republican commissioner for the agency, said in a statement.