https://www.census.gov/programs-surveys/nshapc.html
National Survey of Homeless Assistance Providers and Clients (NSHAPC)
NSHAPC was conducted to provide updated information on homeless assistance programs and the clients who use them.
national surveyhomeless assistanceprovidersclients
https://portal.311.nyc.gov/article/?kanumber=KA-01037
Homeless Outreach Assistance ยท NYC311
homeless outreachassistance