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PREP Act (countermeasure immunity, United States)

A 2005 US federal statute under which, upon a declaration by the Secretary of Health and Human Services, manufacturers, distributors and providers are shielded from damages suits over a covered countermeasure, with victims sent to an administrative compensation program.

Definition

The PREP Act is the US federal statute that immunizes the parties to a health countermeasure (vaccine, treatment, test, mask) against liability suits, once the HHS Secretary has issued a declaration covering it. Passed in late December 2005, amid avian flu fears, it works only through those declarations. The COVID-19 declaration took effect February 4, 2020 and was amended about ten times, eventually reaching pharmacists, medical students and nursing homes. Immunity applies to any federal or state claim for loss caused by the administration or use of the countermeasure. There is one carve-out: willful misconduct, heard in Washington under a narrow procedure. In exchange, the injured person may file with the Countermeasures Injury Compensation Program (CICP), run by HRSA. The filing deadline is one year, the process is on paper, with no paid counsel and no recourse to a court. The record is thin: about 13,000 COVID-19 claims filed by early 2024, and only a handful compensated. For a US products or medical liability underwriter, the statute moves the exposure. Indemnity risk fades while a declaration is in force, defense costs stay, notably on nursing home suits where courts have split over the reach of immunity. Do not confuse it with the VICP, a tax-funded no-fault program that covers routine vaccines and pays claimants far better.

Its 6 cross-references, woven across the glossary's 18 categories
PREP Act (countermeasure immunity, United States): Law & regulation glossary illustration, AlgoPolis
Example

Textbook case: a Texas pharmacy chain administers COVID-19 vaccines in 2021. A patient develops myocarditis and sues the chain in state court, seeking the equivalent of 1.2 million euros. The judge dismisses the case under PREP Act immunity. The patient turns to the CICP, which accepts the link but limits the award to unreimbursed medical expenses, about 30,000 euros. The chain's liability insurer pays only its defense costs.

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Related terms
Also known as

Public Readiness and Emergency Preparedness Act, PREP Act immunity, PREP Act declaration, Countermeasures Injury Compensation Program

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