California Proof of Enrollment or Completion — Alcohol or Drug Program is a document issued by a state-approved alcohol or drug program that verifies a person's enrollment or completion of the program. This proof may be requested by the court, probation department, or other entities as part of a legal process. There are two types of California Proof of Enrollment or Completion — Alcohol or Drug Program: (1) Proof of Enrollment and (2) Proof of Completion. Proof of Enrollment is a document that certifies that an individual is enrolled in an approved alcohol or drug program. It includes the individual's name, the name of the program, and the program's enrollment date. Proof of Completion is a document that certifies that an individual has completed an approved alcohol or drug program. It includes the individual's name, the name of the program, and the program's completion date.