California Drug Sentencing Guidelines: Penalties and Enhancements

California drug sentencing guidelines split sharply along one line: personal use versus commercial activity. Simple possession of most controlled substances is a misdemeanor capped at one year in county jail, and most first-time defendants are steered into treatment rather than custody. Sales, transportation for sale, and manufacturing remain felonies with state prison exposure ranging from two years up to seven or more before enhancements. The 2024 Proposition 36 added a middle category, the “treatment-mandated felony,” that lets prosecutors charge repeat possession offenders more harshly than Proposition 47 previously allowed.¹

What Pushes a Drug Case From Misdemeanor to Felony

The core question in any California drug case is whether the charge lands as a misdemeanor or a felony. Misdemeanors cap out at one year in county jail. Felonies can mean state prison, though some felony drug sentences are served in county jail under California’s realignment rules.

Two voter measures set the current baseline. Proposition 47, passed in 2014, converted most simple drug possession charges from felonies to misdemeanors for defendants without serious prior convictions.² Proposition 64, approved in 2016, legalized recreational cannabis for adults 21 and older and reduced most remaining marijuana offenses to misdemeanors or infractions.³

The dividing line in practice is commercial activity. Possessing drugs for personal use is generally a misdemeanor. Possessing drugs with intent to sell, actually selling, transporting for sale, or manufacturing remains a felony.

Penalties for Simple Possession

Simple possession of a controlled substance for personal use is a misdemeanor in most cases. Under Health and Safety Code 11350, possession of narcotics like heroin, cocaine, and certain prescription opioids carries a maximum of one year in county jail.⁴ Under Health and Safety Code 11377, possession of non-narcotic controlled substances like methamphetamine, certain hallucinogens, and anabolic steroids also carries up to one year in jail, with a statutory fine capped at $70.⁵

Most first-time possession defendants never see the inside of a jail cell. Courts routinely place these defendants on probation and order them into drug treatment.

There’s an exception that matters. If you have a prior conviction for a serious or violent felony listed in Penal Code 667(e), or you’re required to register as a sex offender, simple possession can still be charged as a felony.⁴

Cannabis Limits

Adults 21 and older can legally possess up to 28.5 grams of cannabis flower and up to 8 grams of concentrated cannabis, and can grow up to six plants at home for personal use.³ Exceeding any of these limits is a misdemeanor punishable by up to six months in county jail and a $500 fine.⁶

Cannabis possession by someone under 18 is an infraction. Penalties are limited to drug education or counseling (at least four hours) and community service.³

Proposition 36 and the Treatment-Mandated Felony

The 2024 Proposition 36 is the most significant change to California drug sentencing since Proposition 47. It created a new offense category, the “treatment-mandated felony,” that applies to people who possess certain hard drugs and have two or more prior convictions for drug crimes like possession or sales.¹ Covered substances include fentanyl, heroin, cocaine, and methamphetamine.

The charge is a “wobbler,” which means the prosecutor decides whether to file it as a misdemeanor or a felony. A defendant facing this charge can plead guilty and enter a court-approved treatment program. Completing treatment results in a full dismissal.⁷ Courts cannot impose incarceration unless they first determine the person is not eligible or suitable for treatment.

Refuse or fail treatment, and the felony conviction can bring up to three years in county jail for a first offense and up to three years in state prison for a subsequent offense.⁷ The official voter guide stated that this change “undoes some of the punishment reductions in Proposition 47.”⁸

Sales, Transportation, and Manufacturing

Commercial drug activity is where California sentencing gets severe. None of these offenses qualify for misdemeanor treatment under Proposition 47, and all carry state prison exposure.

California uses a “sentencing triad” for felonies. Each statute lists a lower, middle, and upper term, and the judge selects one. The middle term is the presumptive ceiling; the upper term requires aggravating facts proven to a jury or admitted by the defendant.⁹

The main drug felonies and their triads:

Possession for sale of narcotics under HS 11351 (heroin, cocaine, and similar): two, three, or four years in state prison.¹⁰
Sale or transportation for sale under HS 11352: three, four, or five years for most offenses. Transporting drugs between two noncontiguous counties raises the triad to three, six, or nine years.¹¹
Manufacturing a controlled substance under HS 11379.6: three, five, or seven years, plus a fine of up to $50,000.¹²

A detail that catches people off guard: “transports” under HS 11352 means transporting for sale, not simply moving drugs for personal use.¹¹ A defense showing the drugs were for the defendant’s own use can sometimes reduce or dismiss a transportation charge.

Enhancements That Stack on Prison Time

California’s sentencing enhancements add years on top of the base felony sentence. For felony drug convictions, they can dominate the total time served.

Quantity

Large quantities trigger mandatory additional prison 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 years¹³

Similar tiers apply to methamphetamine and PCP, starting at one kilogram or 30 liters.¹³ Proposition 36 added fentanyl-specific enhancements with much lower thresholds, starting at 28.35 grams (one ounce) for three additional years.¹⁴

Minors and Protected Locations

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, served consecutively.¹⁵

Selling those same drugs at certain protected locations adds more time. Within a church, playground, youth center, daycare facility, or public swimming pool during operating hours or when minors are present adds one year. On or within 1,000 feet of a school during school hours or when minors are present adds two years.¹⁵

Firearms and Strikes

Being personally armed with a firearm during a drug sales, transportation, or manufacturing offense adds three, four, or five years, served consecutively. A defendant who wasn’t personally armed but knew another participant was carrying faces an additional one, two, or three years.

A defendant with a prior serious or violent felony conviction 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.

Diversion and Drug Courts

California offers multiple paths that let non-violent drug defendants avoid a conviction entirely or at least avoid incarceration.

Penal Code 1000 allows eligible defendants charged with simple drug possession to enter pretrial diversion. Complete a court-approved drug education or treatment program, and the charges are dismissed with no conviction on the record.¹⁶

Eligibility requires no conviction for any drug offense (other than the listed possession offenses) within the past five years, no violence involved in the current offense, and no felony conviction within the prior five years.¹⁶ Someone with an older drug conviction can still qualify if five years have passed.

The diversion period runs 12 to 18 months, with possible extension for good cause.¹⁷ Fail treatment or violate the program’s conditions and the prosecutor or court can terminate diversion and resume criminal proceedings on the original charge.¹⁸ Diversion is not a free pass. Failing puts you back where you started.

Drug courts offer a more intensive alternative, combining judicial supervision, mandatory testing, and structured treatment over an extended period. They typically serve defendants who don’t qualify for PC 1000 diversion because of criminal history but are still better candidates for treatment than incarceration.

Clearing a Conviction Later

Defendants who complete probation on a drug conviction can petition under Penal Code 1203.4 to withdraw their guilty plea, enter a not-guilty plea, and have the case dismissed. Relief applies to most penalties and disabilities flowing from the conviction, though it does not erase the record entirely.¹⁹

Eligibility requires that the defendant has completed probation (or been discharged early), is not currently serving a sentence or on probation for another offense, and is not currently charged with a new crime. An unpaid restitution order cannot be used to deny the petition.¹⁹

Separately, anyone convicted of a drug possession offense that would now be a misdemeanor under Proposition 47 can petition to have the old felony redesignated as a misdemeanor, whether or not they’ve already served the sentence.² For marijuana convictions that are no longer crimes under Proposition 64, defendants can petition for resentencing or outright dismissal and sealing of the record.³

1
Legislative Analyst’s Office. Proposition 36 Ballot Analysis
2
Board of State and Community Corrections. The Safe Neighborhoods and Schools Act
3
Judicial Branch of California. Proposition 64 – The Adult Use of Marijuana Act
4
California Legislative Information. California Health and Safety Code 11350
5
California Legislative Information. California Health and Safety Code 11377
6
Los Angeles County Department of Consumer and Business Affairs. Selected Criminal Penalties Under Proposition 64
7
Committee on Revision of the Penal Code. Criminal Laws Created or Amended by Proposition 36
8
California Secretary of State. Proposition 36 – Certain Drug and Theft Crimes Initiative Statute
9
California Legislative Information. California Penal Code 1170
10
California Legislative Information. California Health and Safety Code 11351
11
California Legislative Information. California Health and Safety Code 11352
12
California Legislative Information. California Health and Safety Code 11379.6
13
California Legislative Information. California Health and Safety Code 11370.4
14
California Legislative Information. California Health and Safety Code 11370.4
15
California Legislative Information. California Health and Safety Code 11353.1
16
California Legislative Information. California Penal Code 1000
17
California Legislative Information. California Penal Code 1000.2
18
California Legislative Information. California Penal Code 1000.1
19
California Legislative Information. California Penal Code 1203.4