I think it applies in very limited situations. IIRC, I read about it in relation to pharmaceutical companies having no liability for their vaccines.
BOMBSHELL REPORT: More than a dozen CDC and FDA whistleblowers say COVID guidance was 'ALTERED' AND 'SUPPRESSED' due to political pressure – Employees say they FEARED 'RETALIATION' if they spoke up..— Chuck Callesto (@ChuckCallesto) April 28, 2022