NIH Proposed Overhaul of Grant Review System

The National Institutes of Health is seeking public feedback on a plan to replace numerical grant scores with percentage tiers.

Updated on Oct. 13, 2026 in Nutrition

Isometric editorial illustration showing a stack of three distinct, tiered glass plates representing the proposed NIH grant categorization system. — The National Institutes of Health has proposed replacing numerical grant scores with a three-tier percentage system for evaluating research applications. AI Illustration. Upload story photo >

Live Poll

Should scientific grant review processes prioritize public numerical scores to maintain transparency and institutional accountability?

The National Institutes of Health has introduced a proposal to change how it reviews research grant applications, shifting from a numerical impact score to a three-tier percentage system. The agency is currently accepting public comments on this plan, which would categorize proposals into top, middle, and bottom buckets.

Why it matters

Proponents suggest the system will enhance communication regarding scientific merit and give program officers more flexibility, while critics contend it limits transparency. The change arrives after Congress previously blocked an attempt to allow political appointees to oversee grant decisions.

Grant applications currently undergo review by at least three experts who provide impact scores on a scale of 1 to 9. The new proposal would group applications into tiers consisting of the top 25 percent, the next 25 percent, and the bottom 50 percent.

The players

National Institutes of Health

The agency serves as the primary medical research branch of the United States federal government.

Congress

The legislative body of the federal government has previously intervened in NIH grant policy matters.

The details

Under the proposed system, applications in the bottom 50 percent would not receive an extended discussion by peer reviewers. Experts currently submit written summaries of research outcomes, strengths, and weaknesses for each application reviewed.

The public comment period for the proposal opened in August 2026.
The comment period concludes on Tuesday, October 13, 2026.
The earliest date for reconsidering a separate political appointee grant review proposal is December 2026.

The Big Picture

This proposal marks a departure from the NIH grant application impact score system that has long governed how federal research funds are distributed. By shifting to broad tiers, the agency is signaling a move away from granular numerical assessment toward a model that prioritizes categorical ranking.

Researchers and institutions seeking federal funding may face a more streamlined but less granular evaluation process under the new tier-based system. This could affect the number of projects that receive extended discussion, potentially shifting which types of studies secure NIH support.

The takeaway

Researchers and stakeholders should participate in the remaining comment window to influence the final structure of this review process. Understanding these scoring shifts is essential for those who rely on federal support for medical and nutritional studies.