Executive Order 14303 · Signed May 23, 2025

90 FR 22601 · Published May 29, 2025 · Effective on signing

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Restoring Gold Standard Science

scientific integrityfederal research policydata transparencyregulatory sciencescience communication

Signed by President Donald Trump

The order directs the Office of Science and Technology Policy to issue "Gold Standard Science" guidance within 30 days and requires all federal agencies to update their scientific integrity policies accordingly, while immediately reverting interim policies to the standards that existed on January 19, 2021.

It rescinds Biden-era scientific integrity changes, restricts agencies from relying on worst-case-only scenarios or highly unlikely assumptions without disclosure, and mandates a weight-of-evidence approach and data transparency across all agency science used in policy decisions.

What this order does

What it orders

The order directs the OSTP Director to issue Gold Standard Science guidance within 30 days of signing, after which all agency heads must update their scientific integrity policies to align with that guidance. While those updates are pending, agencies must immediately revert to the scientific integrity policies in place as of January 19, 2021, and agency heads must revoke organizational changes made under the Biden Administration's January 27, 2021 memorandum on scientific integrity. Section 4 takes effect within 30 days and requires all federal employees to avoid scientific misconduct, publicly disclose influential data and models, acknowledge uncertainty, communicate scenario likelihoods transparently, and apply a weight-of-evidence approach.

The order also directs agencies to review all actions taken between January 20, 2021, and January 20, 2025 — including regulations, guidance, and scientific evaluations — and take steps to bring them into alignment with the new standards. Enforcement is handled internally through a senior-appointee-led process at each agency, and waivers are available from OMB in consultation with OSTP. The order explicitly does not create any individually enforceable rights.

Who it affects

All federal agency employees who generate, use, interpret, or communicate scientific information, regardless of job classification. Agency contractors are also directed to follow these rules. Regulated industries and the public are indirectly affected wherever agency science underpins environmental, public health, and other regulatory decisions.

Why it matters

Agencies will be restricted from presenting worst-case-only scenarios — such as high-end climate projections or population models — without disclosing their likelihood, which could alter the scientific basis for pending and future rules on climate, environment, and public health. Agencies must also publicly release influential datasets and model source code, increasing scrutiny of the science behind major regulatory decisions.

What must happen and when

How the order is supposed to work

OSTP issues guidance within 30 days, triggering a cascade: agencies must immediately incorporate it into ongoing work, then formally update written integrity policies, then report back to OSTP within 60 days of the guidance publication. Each agency head designates a senior political appointee to run an internal enforcement process; that office can correct scientific information and refer violations to HR. OMB can grant waivers in consultation with OSTP. National security and foreign affairs agencies may opt themselves out at their head's discretion.

Actions and deadlines

  • OSTP Director issues Gold Standard Science guidance for agencies, in consultation with agency headsWithin 30 days of signing
  • Agency heads and employees adhere to Section 4 rules on scientific data use, interpretation, and communicationWithin 30 days of signing
  • Agency heads revoke organizational or operational changes made pursuant to the January 27, 2021 Presidential Memorandum on scientific integrityNo deadline specified
  • Agency heads update scientific integrity policies to align with OSTP Gold Standard Science guidancePromptly upon publication of OSTP guidance
  • Agency heads report to OSTP on actions taken to implement Gold Standard ScienceWithin 60 days of OSTP guidance publication
  • Agencies review 2021–2025 actions including regulations, guidance, and scientific evaluations for alignment with this orderNo deadline specified

Agencies directed to act

Office of Science and Technology PolicyOffice of Management and BudgetCenters for Disease Control and PreventionNational Marine Fisheries Service

Authority and reach

Authorities cited

Article II

Constitutional grant of executive power to the President.

5 U.S.C. § 7301

Authorizes the President to prescribe regulations governing conduct of federal employees.

Executive Order

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Executive Order 14303: Restoring Gold Standard Science | EO Reporter