Data Hosting: National Survey on Drug Use and Health (NSDUH)

The National Survey on Drug Use and Health (NSDUH) measures:

  • use of illegal drugs, prescription drugs, alcohol, and tobacco
  • mental disorders, treatment, and co-occurring substance use and mental disorders

NSDUH data provides estimates of substance use and mental illness at the national, state, and sub-state levels.  NSDUH data also helps to identify the extent of substance use and mental illness among different sub-groups, can be used for estimates of trends over time, and measures the need for treatment services

About NSDUHexternal icon

SAMHSA RDC Processexternal icon

NSDUH restricted-use codebook for all available years are available on the SAMHSA RDC website under Preparing a quality application.

Location of Access:

Non-US citizens should contact the NCHS RDC,, to inquire about additional access requirements.


SAMHSA RDC reviews and approves all NSDUH proposals. Proposal review will take up to 8 weeks. Submit completed proposals to

Proposal amendments, including changes to the research team or minor adjustments to research questions, require an updated proposal and full review by SAMHSA RDC.  Revisions in the proposal must be highlighted; please do not use track changes.

Confidentiality and Disclosure:

After the proposal is approved, all members of the research team are required to complete the Confidentiality orientation and other confidentiality requirements.  For more information, see SAMHSA RDC Process site under Completing Confidentiality requirements.

  • Confidentiality orientation
  • FSRDC: FSRDC users, mainly programmers, must apply for Special Sworn Status (SSS). The SSS application process does not begin until after proposal approval. Contact FSRDC for more information.

Output Review for Disclosures:

All output submitted for review should be the near final product.  SAMHSA RDC will not review frequency distributions or other large volumes of output.  When preparing your output for review, make sure the following rules are applied before you submit your output for review:

  • Unweighted numbers must be rounded to the nearest hundred

Follow these steps to request output review:

1) Save the output to the appropriate folder.

  1. NCHS ONSITE: Place all output in a folder titled: DDMMMYY_RDCID_PI Last Name
  2. DDMMMYY – Request Date with 3 or 4 letters month abbreviation
    ii. RDCID
    iii. PI Last Name – always use the researcher’s Last Name
  3. FSRDC: Follow FSRDC disclosure request procedures.

2) Email the NCHS RDC Analyst the folder name and brief description of the output. The RDC Analyst will transfer your file to SAMHSA RDC within five business days.

3) SAMHSA RDC will review and release approved output within three weeks of receipt.


Page last reviewed: September 29, 2021, 12:50 PM