“The money for the program was included in the American Rescue Plan—passed back in March—a massive $1.9 trillion spending bill that was sold as a COVID-19 response but contained very little that had to do with the epidemic. The bill set aside $4 billion for use for drug addiction programs and mental health treatment.”
https://reason.com/2021/12/09/feds-pledge-30-million-to-fund-drug-harm-reduction-programs/