S. Rept. 117-69: National Suicide Hotline Designation Act of 2019, Report Including Cost Estimate of the Congressional Budget Office, February 9, 2022 [open pdf - 407KB]
From the Purpose of the Bill: "The purpose of the National Suicide Hotline Designation Act of 2019 (S. 2661) is to designate the three-digit dialing code 9-8-8 as the universal telephone number for the purpose of the national suicide prevention and mental health crisis hotline system. S. 2661 also would reserve the ability of States to assess fees to support the hotline system, and make other changes to the law to enhance the effectiveness of the hotline system."
S. Rept. 117-69; Senate Report 117-69
U.S. Government Publishing Office: http://www.gpo.gov/