The move by Ms. Rosenworcel came after the Senate confirmed Anna Gomez as a fifth commissioner of the F.C.C. earlier this month. That gave the Democrats a majority on the commission, breaking a 2-2 partisan deadlock.

The F.C.C. chairwoman will release the full text of the proposed rule on Thursday. That is a first step. The commissioners will vote on the draft proposal on Oct. 19. If approved, there will be a period of public comment and replies for a few months. The commission will likely vote on the final rules next year.

The net neutrality issue has stirred waves of public interest in the past. There have been street protests, torrents of email comments and even threats of violence against commissioners who opposed the earlier net neutrality rules.

It has been a technical issue that resonated politically with progressives who see the rules as a needed restraint on corporate power and a campaign to keep the internet open and fair.

The cable and telecommunications companies opposed the rule largely because they saw it as regulatory overreach. They feared that classifying broadband providers as “common carriers,” like phone companies, opened the door to utility-style regulation and government price setting.