Expands and clarifies federal activity on traumatic brain injury (TBI) by updating definitions, grant rules, and authorized funding periods; requires the CDC to publish aggregated TBI/concussion data and prevention information (including for higher‑risk groups); directs HHS to report to Congress on higher‑risk populations and related outreach; and mandates a Department study and congressional report on long‑term or chronic conditions following TBI within two years.

The changes add a maintenance‑of‑effort requirement (with a limited waiver) for certain state TBI grants, revises program definitions (including a detailed TBI definition), extends authorization years for specified grant programs through 2030, and focuses federal attention on data gaps and services for populations at higher risk of TBI and its long‑term effects.