California’s drug sentencing guidelines split cases along one main line: personal use versus commercial activity. Simple possession of most controlled substances is a misdemeanor capped at one year in county jail, and first-time defendants are usually steered into treatment rather than custody. Selling, transporting for sale, or manufacturing drugs is a felony with state prison terms running from two to seven years before any enhancements, and large quantities, firearms, or sales near schools can add years or decades more. The 2024 Proposition 36 reshaped the lower end: prosecutors can now charge someone with two prior drug convictions with a “treatment-mandated felony” for possessing fentanyl, heroin, cocaine, or methamphetamine.
How California Classifies Drug Offenses
Every California drug charge is either a misdemeanor (up to one year in county jail) or a felony (state prison exposure, though some felony drug sentences are served in county jail under realignment).
Two voter measures set the current baseline. Proposition 47, passed in 2014, converted most simple possession charges from felonies to misdemeanors for defendants without serious prior convictions.1Board of State and Community Corrections. The Safe Neighborhoods and Schools Act Proposition 64, approved in 2016, legalized recreational cannabis for adults 21 and older and dropped most remaining marijuana offenses to misdemeanors or infractions.2Judicial Branch of California. Proposition 64 – The Adult Use of Marijuana Act
The practical dividing line is commercial activity. Possession for personal use is generally a misdemeanor. Possession with intent to sell, actual sale, transportation for sale, and manufacturing stay felonies regardless of the reforms.
Penalties for Simple Possession
Simple possession of a controlled substance for personal use is almost always a misdemeanor. The specifics shift slightly by substance.
For narcotics under Health and Safety Code 11350 (heroin, cocaine, certain prescription opioids), the maximum is one year in county jail.3California Legislative Information. California Health and Safety Code 11350 For non-narcotic controlled substances under Health and Safety Code 11377 (methamphetamine, certain hallucinogens, anabolic steroids), the jail maximum is also one year, with the fine capped at $70.4California Legislative Information. California Health and Safety Code 11377
Most first-time possession defendants never see jail time. Courts routinely order probation plus drug treatment. The system is designed to keep low-level users out of custody.
There is a sharp exception. If the defendant has a prior conviction for a serious or violent felony listed in Penal Code 667(e), or is required to register as a sex offender, simple possession can be charged as a felony.3California Legislative Information. California Health and Safety Code 11350
Cannabis Possession and Cultivation
Adults 21 and older can legally possess up to 28.5 grams of cannabis flower, up to 8 grams of concentrated cannabis, and grow up to six plants at home for personal use.2Judicial Branch of California. Proposition 64 – The Adult Use of Marijuana Act Going over any of these limits is a misdemeanor punishable by up to six months in county jail and a $500 fine.5Los Angeles County Department of Consumer and Business Affairs. Selected Criminal Penalties Under Proposition 64
Cannabis possession by someone under 18 is an infraction, with penalties limited to drug education or counseling (at least four hours) and community service.2Judicial Branch of California. Proposition 64 – The Adult Use of Marijuana Act
Treatment-Mandated Felonies Under the 2024 Proposition 36
The 2024 Proposition 36 is the biggest sentencing change since Proposition 47. It created a new offense called a “treatment-mandated felony” for people who possess fentanyl, heroin, cocaine, or methamphetamine and have two or more prior convictions for drug crimes like possession or sales.6Legislative Analyst’s Office. Proposition 36 Ballot Analysis
The charge is a “wobbler,” so the prosecutor decides whether to file it as a misdemeanor or a felony. A defendant can elect to plead guilty and enter a court-approved treatment program; completing treatment results in a full dismissal.7Committee on Revision of the Penal Code. Criminal Laws Created or Amended by Proposition 36 Courts cannot impose incarceration unless they first find the person ineligible or unsuitable for treatment.
If the defendant refuses treatment or fails to complete it, a felony conviction can result in up to three years in county jail for a first offense and up to three years in state prison for a subsequent offense.7Committee on Revision of the Penal Code. Criminal Laws Created or Amended by Proposition 36 The official voter guide stated the change “undoes some of the punishment reductions in Proposition 47.”8California Secretary of State. Proposition 36 – Certain Drug and Theft Crimes Initiative Statute
Penalties for Sales, Transportation, and Manufacturing
Commercial drug activity is where sentencing gets severe. None of these offenses qualify for misdemeanor treatment under Proposition 47. Each felony statute lists three possible prison terms, and the judge selects one.
- Possession for sale of narcotics (HS 11351): Two, three, or four years in state prison. Covers heroin, cocaine, and similar narcotics.9California Legislative Information. California Health and Safety Code 11351
- Sale or transportation for sale (HS 11352): Three, four, or five years for most offenses. If drugs were transported between two noncontiguous counties, the triad jumps to three, six, or nine years. “Transports” here means transporting for sale, not simply moving drugs for personal use.10California Legislative Information. California Health and Safety Code 11352
- Manufacturing a controlled substance (HS 11379.6): Three, five, or seven years, plus a fine of up to $50,000.11California Legislative Information. California Health and Safety Code 11379.6
SB 73, in effect since 2022, expanded probation eligibility for many drug sale and manufacturing offenses that previously required prison. Judges can now grant probation for possession for sale of large quantities of heroin, cocaine, or methamphetamine, and for manufacturing. The exception is cases where a minor was used as an agent; probation is then available only in unusual circumstances.
Sentencing Enhancements That Add Prison Time
Enhancements stack additional prison years on top of the base felony sentence.
Quantity Enhancements
Large quantities trigger mandatory additional terms under Health and Safety Code 11370.4. For heroin, cocaine, and cocaine base:
- Over 1 kilogram: 3 additional years
- Over 4 kilograms: 5 additional years
- Over 10 kilograms: 10 additional years
- Over 20 kilograms: 15 additional years
- Over 40 kilograms: 20 additional years
- Over 80 kilograms: 25 additional years12California Legislative Information. California Health and Safety Code 11370.4
Methamphetamine and PCP have similar tiers starting at one kilogram or 30 liters.12California Legislative Information. California Health and Safety Code 11370.4 The 2024 Proposition 36 added fentanyl-specific thresholds that are much lower, starting at 28.35 grams (one ounce) for an additional three years.13California Legislative Information. California Health and Safety Code 11370.4
Selling to Minors and Location-Based Enhancements
Selling or furnishing heroin, cocaine, or cocaine base to a minor at least four years younger than the defendant adds one, two, or three years in state prison as a separately served enhancement.14California Legislative Information. California Health and Safety Code 11353.1
Location matters too. Selling those same drugs within a church, playground, youth center, daycare facility, or public swimming pool during operating hours or when minors are present adds one year. Selling on or within 1,000 feet of a school during school hours or when minors are present adds two years.14California Legislative Information. California Health and Safety Code 11353.1 These run consecutively to the base sentence.
Firearm Enhancements
Being personally armed with a firearm during a drug sale, transportation, or manufacturing offense adds three, four, or five years in state prison, served consecutively. A defendant who was not personally armed but knew another participant was faces an additional one, two, or three years.
Prior Strikes
A defendant with a prior serious or violent felony “strike” who picks up a new felony drug charge faces a doubled sentence under the Three Strikes Law. Drug felonies themselves generally do not count as strikes, but certain drug offenses involving firearms or other aggravating factors can qualify. A third strike can still produce a life sentence in limited circumstances.
Diversion and Drug Courts
California offers several routes that let non-violent drug defendants avoid a conviction, or at least avoid incarceration.
Penal Code 1000 pretrial diversion lets eligible defendants charged with simple possession enter a court-approved drug education or treatment program. Finish the program and the charges are dismissed with no conviction on record. Eligibility requires no conviction for any drug offense (other than the listed possession offenses) within the past five years, no violence in the current offense, and no felony conviction in the prior five years.15California Legislative Information. California Penal Code 1000
The diversion period runs 12 to 18 months, with possible extension for good cause.16California Legislative Information. California Penal Code 1000.2 Failing or violating the program lets the prosecutor or court terminate diversion and resume prosecution on the original charge.17California Legislative Information. California Penal Code 1000.1 Diversion is not a free pass; failing it puts you right back where you started.
Drug courts are a more intensive alternative, combining judicial supervision, mandatory testing, and structured treatment over a longer period. They often serve defendants who don’t qualify for PC 1000 because of prior history but are still better suited to treatment than incarceration. Successful completion can lead to dismissal or a reduced sentence.
Clearing a Drug Conviction From Your Record
After completing probation, a defendant can petition under Penal Code 1203.4 to withdraw the guilty plea, enter a not-guilty plea, and have the case dismissed. This releases the defendant from most penalties and disabilities tied to the conviction, though it does not fully erase the record. Eligibility requires that probation is complete (or the defendant was discharged early), the person is not serving another sentence or on probation, and is not currently charged with a new crime. Unpaid restitution alone cannot be used to deny the petition.18California Legislative Information. California Penal Code 1203.4
Separately, anyone convicted of a possession offense that would now be a misdemeanor under Proposition 47 can petition to have the old felony redesignated, whether or not they have finished their sentence.1Board of State and Community Corrections. The Safe Neighborhoods and Schools Act For marijuana convictions that are no longer crimes under Proposition 64, defendants can petition for resentencing or outright dismissal and sealing of the record.2Judicial Branch of California. Proposition 64 – The Adult Use of Marijuana Act