Washington ? Large and small companies have told Republican-led congressional committees what the party wants to hear: dire predictions of plant closings and layoffs if the Obama administration succeeds with plans to further curb air and water pollution.

But their message to financial regulators and investors conveys less gloom and certainty.

The administration itself has clouded the picture by withdrawing or postponing some of the environmental initiatives that industry labeled as being among the most onerous.

Still, Republicans plan to make what they say is regulatory overreach a 2012 campaign issue, taking aim at President Barack Obama, congressional Democrats and an aggressive Environmental Protection Agency.

“Republicans will be talking to voters this campaign season about how to keep Washington out of the way, so that job creators can feel confident again to create jobs for Americans,” said Joanna Burgos, a spokeswoman for the House Republican campaign organization.

The Associated Press compared the companies’ congressional testimony to company reports submitted to the Securities and Exchange Commission. The reports to the SEC consistently said the impact of environmental proposals is unknown or would not cause serious financial harm to a firm’s finances.

Companies can legitimately argue that their less gloomy SEC filings are correct, since most of the tougher anti-pollution proposals have not been finalized. And their officials’ testimony before congressional committees was sometimes on behalf of — and written by — trade associations, a perspective that can differ from an individual company’s view.

But the disparity in the messages shows that in a political environment, business has no misgivings about describing potential economic horror stories to lawmakers.

“As an industry, we have said this before, we face a potential regulatory train wreck,” Anthony Earley Jr., then the executive chairman of DTE Energy in Michigan, told a House committee on April 15. “Without the right policy, we could be headed for disaster.”

The severe economic consequences, he said, would be devastating to the electric utility’s customers, especially Detroit residents who “simply cannot afford” higher rates.

Earley, who is now chairman and CEO of Pacific Gas & Electric Corp., said if the EPA had its way, coal-fired plants would be replaced with natural gas — leading to a spike in gas prices. He said he was testifying for the electric industry, not just his company.

But in its quarterly report to the SEC, Detroit-based DTE, which serves 3 million utility customers in Michigan, said that it was “reviewing potential impacts of the proposed and recently finalized rules, but is not able to quantify the financial impact … at this time.”

Skiles Boyd, a DTE vice president for environmental issues, said in an interview that the testimony was meant to convey the potential economic hardship on ratepayers — while the SEC report focused on the company’s financial condition.

“It’s two different subjects,” he said.