Several consumer privacy groups said Monday that they support a bill from Sens. Jay Rockefeller (D-W.V.) and Richard Blumenthal (D-Conn.) that would require the Federal Trade Commission to set standards for companies to ensure they will offer consumers the ability to opt-out of online tracking.

The Center for Digital Democracy, Consumer Action, Consumer Watchdog, the Consumer Federation of America, the Privacy Rights Clearing house and the U.S. Public Interest Research Group have all said they support the bill.

Rockefeller last week scheduled a hearing on Do Not Track proposals, saying that he wants an explanation as to why the industry has not implemented proposals offering consumers the option to turn off online ad tracking.