SAMHSA has two mailing addresses, one for US Postal Mail, and one for package deliveries (FedEx, UPS, Airborne Express, DHL, etc.): U.S. Post Service Address
Substance Abuse and Mental Health Services Administration
1 Choke Cherry Road
Rockville, MD 20857
FedEx, UPS, Airborne Express, DHL, etc.
Substance Abuse and Mental Health Services Administration
1 Choke Cherry Road
Rockville, MD 20850 | 
