https://www.hhs.gov/about/news/2019/08/22/hhs-42-cfr-part-2-proposed-rule-fact-sheet.html

"The 42 CFR part 2 regulations serve to protect patient records created by federally funded programs for the treatment of substance use disorder (SUD). SAMHSA is currently proposing to revise part 2, to facilitate better coordination of care for substance use disorders which will also enhance care for opioid use disorder (OUD). These provisions will be an important part of the Federal response to the opioid epidemic, while maintaining part 2 confidentiality protections."