President Obama may personally announce new carbon emissions limits on existing coal-fired power plants.

Environmental Protection Agency Administrator Gina McCarthy on Monday said Obama has indicated he wants to put his personal touch behind the rules.

“The president has indicated his intent to announce himself” the carbon emissions rules, she said during a Google climate chat with Energy Secretary Ernest Moniz.

McCarthy called the move by Obama to announce the proposal “a strong indication of how important he sees this.”

An EPA spokesperson subsequently said it’s not positive the announcement will come from Obama since the president’s schedule is not set in stone.

“Plans for the rollout have not been finalized,” the spokesperson said.

When a rule is proposed it is typically published in the Federal Register to little fanfare. But Obama’s personal announcement of the proposal will send a signal to Congress, and opponents of the rule, that he plans to see his climate agenda through to the end.

The announcement would be likely to come in early June, just months before midterm elections where Obama’s climate policies will be front and center in a number of contests.

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