Archives:
https://archive.ph/9QihX
https://web.archive.org/web/20230424220455/https://lionessofjudah.substack.com/p/fda-vaccines-do-not-require-demonstration
And archive of linked PDF:
https://web.archive.org/web/20230424000739/https://downloads.regulations.gov/FDA-2023-P-0360-0191/attachment_1.pdf
(post is archived)