42 U.S.C. 247d-6b
42 U.S.C. ยง 247d-6b creates the "Strategic national stockpile and security countermeasure procurements," conferring authority on the Secretary of HHS to manage the Strategic National Stockpile.
More than 60 million doses of hydroxychloroquine - perhaps as much as 100 million doses -- are stored in the Strategic National Stockpile but withheld from the public amid the coronavirus pandemic.