Congressional Budget Office Cost Estimate: H.R. 2345: National Suicide Hotline Improvement Act of 2018 [open pdf - 101KB]
"H.R. 2345 would require the Federal Communications Commission (FCC) to coordinate with the Department of Veterans Affairs (VA) and the Substance Abuse and Mental Health Services Administration (SAMHSA) within the Department of Health and Human Services to study and report on the feasibility of designating a N11 dialing code as a national suicide prevention and mental health crises hotline system."
Congressional Budget Office: http://cbo.gov