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This story has been updated with EPA's response.

President Donald Trump's administration has launched yet another attempt to control the use of science in federal policymaking—this time with a memorandum to government agencies from the White House budget office.

The memo, quietly released on Wednesday, appears aimed at putting into effect some long-sought goals of industry foes of environmental regulations.

Described as "guidance" for executive branch agencies, it offers numerous new avenues for regulated industries to challenge the science used in policymaking. The memo was signed by Russell Vought, a former top official at the political arm of the conservative Heritage Foundation who is now acting director of the White House Office of Management and Budget (OMB).

Observers say the OMB is seeking to implement by fiat restrictions on environmental and health science that have failed to garner support in Congress and have foundered in a formal rulemaking process begun last year by the Environmental Protection Agency.

"There's been no consultation with the scientific community, no opportunity to comment, no analysis on the costs or impacts," said Andrew Rosenberg, director of the Center for Science and Democracy at the Union of Concerned Scientists.

Vought's memo, titled "Improving Implementation of the Information Quality Act," sets out new guidance for all federal agencies on identifying and using "influential scientific, financial, or statistical information."

It says that such data should be held to higher standards than other information, with a more in-depth peer review required. That review should evaluate "the objectivity of the underlying data and the sensitivity of the agency's conclusions to analytic assumptions," with additional peer review required in some circumstances.

Data of this kind, such as health surveys, are often used to support controls on pollutants, including those like smog and soot that come from burning fossil fuels. The guidance could also affect how limits on greenhouse gas emissions are devised.

Vought writes that influential analysis must be disseminated to the public "with sufficient descriptions of data and methods to allow them to be reproduced by qualified third parties who may want to test the sensitivity of agency analyses."

The OMB memo appears aimed at achieving the same goals as EPA's proposal last year, the so-called "Strengthening Transparency in Regulatory Science" rule, which sought to prevent the EPA from relying on public health studies where the raw data had not been made public due to confidentiality concerns. It mirrored legislation sponsored by former Rep. Lamar Smith (R-Texas), then chairman of the House Science Committee, that was passed by the House of Representatives three times but never been taken up by the Senate.

Under the guise of transparency, the EPA rule would have excluded from environmental policymaking some of the seminal studies linking air pollution to increased mortality.

The EPA received more than 500,000 public comments on the transparency proposal, including an extraordinary outpouring of opposition from the scientific community—including the presidents of the National Academies of Sciences, Engineering and Medicine; the leaders of physicians' groups like the American Academy of Pediatrics; health organizations like the American Lung Association; and the editors of major scientific journals.

No further public action has occurred on the rule since the comment period closed last August. An EPA spokesperson said in an email that the agency "is considering the new OMB memorandum as we move forward with the 'Strengthening Transparency in Regulatory Science' rulemaking."

It is not clear exactly what impact the OMB guidance will have—in part because this kind of guidance doesn't have the force and effect of law. (In other words, the requirements and deadlines of environmental statutes would weigh more heavily before a judge.) Also, Vought does not specify what the EPA or other agencies are to do about influential scientific studies that do not meet the new requirements. But Rosenberg said it appears to offer the regulated industry new avenues to challenge actions that rely on science.

"It's about delay," said Rosenberg. "Every piece of this allows industry to make a claim that will delay the process of regulations.

"It essentially says that anyone—mostly industry—can challenge the data or technical information, and the agency then has to develop a response to every challenge, and then the person who challenged the data can appeal, and you have to go through this cycle again, apparently endlessly."

Vought, known as a conservative firebrand who served as an aide to Vice President Mike Pence when Pence was a member of Congress, played a key role in the budget controversies that engulfed the White House early this year. He reportedly designed Trump's initial proposal for border wall funding and led the decision to continue processing tax refunds during the government shutdown.

Vought's memo on information quality portrays the new guidance as a good government measure. "Prudent decision making depends on reliable, high-quality information," Vought wrote. "Congress has long recognized that federal agencies should make decisions using the best data reasonably available, and Congress has entrusted OMB with the statutory role of ensuring that federal agencies collect, use, and disseminate information that is fit for its intended purpose."