Grants/Funding
Funding Opportunities and Notices – NIH Guide for Grants and Contracts   
The NIH Guide for Grants and Contracts is the official publication for NIH medical and behavioral research grant policies, guidelines and funding opportunities. 
Special Projects of
National Significance (SPNS)   
The
  purpose of the program is to advance knowledge and skills in the delivery of
  health and social services to people with HIV infection who are disadvantaged
  financially and medically underserved. ALL SPNS grant initiatives can be searched
  under the CFDA Code no. of 93.928. If you go to and type in this
  CFDA Code no., you will get a complete list. In the beginning of each grant announcement,
  the eligibility criteria will determine if a tribal entity, federal agency, and/or
  AI/AN organization, etc. can apply.
Substance Abuse and Mental Health Services Administration (SAMHSA)