California does not have a single statute called a “first offender program.” What people mean by that phrase is diversion — a set of programs under the California Penal Code that let an eligible defendant complete treatment, education, or other court-ordered conditions in place of being prosecuted. Finish the program and the charge is dismissed. Which track applies depends on the offense and your background, and each one has its own eligibility rules, excluded charges, and time limits.
Four tracks cover most first-time defendants: drug diversion under Penal Code 1000, general misdemeanor diversion under Penal Code 1001.95, mental health diversion under Penal Code 1001.36, and military veteran diversion under Penal Code 1001.80.
Drug Diversion Under Penal Code 1000
Penal Code 1000 is the classic first-offense track for minor, nonviolent drug cases. It is true pretrial diversion, meaning you do not enter a guilty plea before treatment begins.1California Legislative Information. California Penal Code 1000
Eligible offenses are limited to personal-use crimes: simple possession of a controlled substance, possession of drug paraphernalia, being under the influence, and cultivating marijuana for personal use. Trafficking, sales, and manufacturing offenses do not qualify.
You are ineligible if you had a conviction for a non-qualifying drug offense within the past five years, or any felony conviction within the past five years. A drug conviction older than five years does not automatically bar you. The diversion period runs 12 to 18 months, during which you must complete a court-approved drug education or treatment program. If you need more time to finish, you can ask the court for an extension.
Misdemeanor Diversion Under Penal Code 1001.95
Penal Code 1001.95 gives judges broad authority to divert almost any misdemeanor, and it is one of the most powerful tools available to first-time defendants because the judge can grant it even over the prosecutor’s objection.2California Legislative Information. California Penal Code 1001.95 – Court Initiated Misdemeanor Diversion
The statute excludes only three categories: offenses requiring sex offender registration under Penal Code 290, domestic violence offenses, and stalking. DUI is not on the statutory exclusion list, but Vehicle Code provisions separately restrict diversion for driving-under-the-influence offenses, and the rules there have been shifting. Get advice specific to a DUI before counting on diversion.
When the judge grants diversion, the case can be continued for up to 24 months. The court sets conditions appropriate to the offense: community service, restitution, educational classes, or other requirements. Inability to pay restitution alone cannot be used to deny diversion or declare you in violation.
Mental Health Diversion Under Penal Code 1001.36
Mental health diversion applies to both misdemeanors and felonies and is designed for defendants whose mental health condition played a meaningful role in the offense.3California Legislative Information. California Penal Code 1001.36 Because this track can reach serious felony charges, it demands more documentation than the others.
You must have a diagnosed mental disorder recognized in the current edition of the Diagnostic and Statistical Manual of Mental Disorders. Qualifying diagnoses commonly include bipolar disorder, schizophrenia, schizoaffective disorder, and PTSD. Antisocial personality disorder and pedophilia are specifically excluded. A qualified mental health professional must confirm that the disorder was a significant factor in the charged offense, and the court must find you do not pose an unreasonable risk of danger to public safety if treated in the community.
The maximum diversion period is two years for a felony and one year for a misdemeanor. Certain serious offenses are excluded entirely: murder or voluntary manslaughter, rape, lewd acts on a child under 14, assault with intent to commit rape or similar sex crimes, continuous sexual abuse of a child, most offenses requiring sex offender registration, and the use of weapons of mass destruction. Vehicle Code 23640 also bars mental health diversion for DUI.
Military Veteran Diversion Under Penal Code 1001.80
Current and former members of the U.S. military have their own track covering both misdemeanors and felonies.4California Legislative Information. California Penal Code 1001.80 The program recognizes that service-connected conditions — PTSD, traumatic brain injury, military sexual trauma, substance abuse, and other mental health problems — can contribute to criminal behavior.
For a misdemeanor, you need to show you are or were a service member and that you may be suffering from a qualifying service-connected condition. Felony eligibility adds a higher bar: the condition must have been a significant factor in the offense. The statute tilts in your favor; the court must find the connection exists unless clear and convincing evidence shows otherwise.
The maximum diversion period is two years. Excluded offenses mirror the mental health list: murder, voluntary manslaughter, rape, certain sex crimes against children, most offenses requiring sex offender registration, and weapons of mass destruction charges.
How to Request Diversion
The process starts when your defense attorney files a formal request asking the judge to consider diversion. The request identifies which statute applies, shows that you meet the eligibility criteria, and attaches supporting documentation — treatment records, a mental health evaluation, military service records, or whatever the specific program requires.
The court reviews your criminal history, the facts of the case, and the prosecution’s position. For drug diversion under Penal Code 1000, the prosecutor’s office typically makes the initial eligibility determination. For misdemeanor diversion under 1001.95, the judge has the final say regardless of the prosecutor’s position. Mental health and veteran diversion both require the court to weigh both sides before ruling.
If the court grants diversion, you formally agree to the conditions and waive your right to a speedy trial. Criminal proceedings pause. The clock starts on your diversion period, and you are expected to begin complying with whatever the court ordered.
What Completion Does to Your Record
When you finish all conditions within the diversion period, the court dismisses the charge. Under California law, the arrest is generally deemed never to have occurred, and you can respond to most employment and housing questions by saying you were not convicted of or arrested for the offense.5California Legislative Information. California Penal Code 1001.9
Dismissal does not always mean the records disappear automatically. For drug diversion under Penal Code 1000, you may need to file a petition to seal your arrest and court records, using specific court forms and serving the petition on the prosecuting agency. The court can order records sealed, but you often have to take that step yourself.
One exception matters for anyone considering a career in law enforcement: even after successful completion and sealing, the arrest can still be disclosed in response to peace officer applications, and you are required to disclose it if asked directly.
What Happens If You Fail
Diversion is not a free pass. Missing appointments, picking up a new charge, or otherwise failing to meet the court’s conditions triggers a hearing on whether to reinstate the original criminal proceedings. For mental health diversion, the court may instead modify the treatment plan or, in extreme cases involving grave disability, refer you for conservatorship. Veteran diversion has a similar hearing process when a defendant appears to be performing unsatisfactorily or not benefiting from treatment.
If criminal proceedings are reinstated, the case picks up where it left off. You face the original charges as if diversion never happened, and you can be convicted and sentenced in the normal course. People sometimes treat diversion casually because no conviction has been entered yet, and that complacency is where most failures begin.
A Warning for Noncitizens
If you are not a U.S. citizen, California diversion does not necessarily protect you from immigration consequences. Federal immigration law uses its own definition of “conviction,” and the Board of Immigration Appeals has held that certain diversion arrangements — particularly older ones requiring a guilty plea or admission of facts before entering the program — can still count as convictions for deportation and inadmissibility purposes. California’s shift toward true pretrial diversion was partly a response to this problem, but the risk has not disappeared. Before entering any diversion program, a noncitizen defendant should consult an immigration attorney who understands how federal authorities will classify the specific program.