Welcome to the California Department of Alcohol and Drug Programs

CalOMS Treatment


Effective with the passage of the 2013-2014 Budget Act and associated legislation, the Department of Alcohol and Drug Programs (ADP) no longer exists as of July 1, 2013. All ADP programs and staff, except the Office of Problem Gambling, transferred to the Department of Health Care Services (DHCS). Please visit the DHCS website. Read more...


CalOMS Treatment (CalOMS Tx) is California's data collection and reporting system for alcohol and other drug treatment services. Treatment providers send client treatment data to ADP each month. This treatment data builds a comprehensive picture of client behavior with: alcohol and drug use, the legal system, employment and education, family and social ties, and physical and psychological health. Summary reports, created from this treatment outcome data, contribute to the understanding of treatment and the improvement of substance abuse treatment programs in the continuum of prevention, treatment and recovery services. By telling the story of substance abuse and recovery in California, CalOMS Tx provides rich data for improving treatment outcomes, supporting effective funding and for legally mandated federal and state reporting.

All CalOMS Tx data is protected PHI. At a minimum, when using this data, use protection that complies with the privacy and security requirements defined in the rules of the Health Insurance Portability and Accountability Act (HIPAA) and Confidentiality of Alcohol and Drug Abuse Patient Records (42 CFR Part 2).

2013 CalOMS-Tx Calendar

For more information about CalOMS Tx:

CalOMS Treatment Quarterly Conference Calls

CalOMS Tx Documentation

CalOMS Tx Communication



Discharge information

  • NEW! CalOMS Bulletin #11-13 Referral Code for Post-Release Community Supervision (AB 109) clients in the California Outcome Measurement System - Treatment (CalOMS-Tx)
  • CalOMS Bulletin #11-10 Procedures for Collection of Discharge Data for the California Measurement System - Treatment (CalOMS-Tx)
  • CalOMS Bulletin #10-08 Criteria for Discharging Treatment Clients using the CalOMS Tx Completion Discharge Statuses. This Bulletin supersedes Bulletin 10-04 and clarifies several points made in the original.
  • CalOMS Bulletin #10-04 Criteria for Discharging Treatment Clients using the CalOMS Tx Completion Discharge Statuses
  • CalOMS Bulletin #08-08 Guidelines to clarify procedures for collection of admission and discharge data for CalOMS Tx

Information Technology Web Services (ITWS)