New Enhancement Laws in California: SB 81, AB 333, and Prop 36

California’s new sentencing enhancement laws have reshaped how add-on prison time is imposed, challenged, and undone. Between 2019 and 2024, the Legislature and voters gave judges a strong presumption to dismiss stacked or lengthy enhancements (SB 81), raised the bar for gang enhancements (AB 333), invalidated older prior-prison-term and drug-prior enhancements and required resentencing (SB 136 and SB 483), and then added new enhancements for repeat theft and drug offenses through Proposition 36. If you or someone you know is facing a California sentence or currently serving one, these are the changes that matter.

SB 81: When Judges Must Consider Dismissing Enhancements

Senate Bill 81 took effect January 1, 2022, and rewrote Penal Code Section 1385 to guide how judges handle enhancements at sentencing. The statute lists nine mitigating circumstances the court “shall consider and afford great weight” to when a defendant asks to have an enhancement dismissed.¹

Two of the nine go beyond a presumption. If multiple enhancements are alleged in a single case, all enhancements beyond a single one “shall be dismissed.” And if any enhancement would push the total sentence above 20 years, that enhancement “shall be dismissed.” Both mandates give way only if the court finds that dismissal would endanger public safety, meaning a likelihood of physical injury or serious danger to others.¹

The other seven mitigating circumstances create a strong presumption favoring dismissal:

The enhancement would have a discriminatory racial impact.
The offense is connected to the defendant’s mental illness.
The offense is connected to childhood trauma or prior victimization.
The current offense is not a violent felony.
The defendant was a juvenile at the time of the current offense or the prior that triggers the enhancement.
The enhancement is based on a prior conviction more than five years old.
A firearm was involved but was inoperable or unloaded.

When one of these applies, the court must dismiss unless it makes the same narrow public-safety finding. Before SB 81, judges could technically strike enhancements but had little guidance, and prosecutors could stack several to lock in a decades-long sentence. The new framework changes both the default and the burden of explanation.

One important limit: Section 1385(c)(1) says the court shall dismiss “except if dismissal of that enhancement is prohibited by any initiative statute.” Enhancements created by voter-approved measures may be outside SB 81’s reach.¹

AB 333: Higher Bar for Gang Enhancements

Assembly Bill 333, the STEP Forward Act, took effect January 1, 2022, and rewrote Penal Code Section 186.22, the statute that governs gang enhancements. Three changes matter most.

First, the definition of “criminal street gang” now requires an “ongoing, organized association or group of three or more persons” whose members “collectively engage in, or have engaged in, a pattern of criminal gang activity.” The list of qualifying predicate offenses was narrowed, and crimes such as looting, felony vandalism, and certain identity fraud no longer count toward establishing a gang pattern.²

Second, the predicate crimes must have “commonly benefited a criminal street gang,” and the benefit must be “more than reputational.” Under the old law, prosecutors could argue that nearly any crime by a gang member enhanced the gang’s reputation. Now the benefit has to be tangible, like financial gain, retaliation against a rival, or intimidation of a witness.²

Third, the currently charged offense can no longer be used to prove the pattern of gang activity. Prosecutors have to point to other qualifying offenses.³

Bifurcated Trials on Gang Allegations

AB 333 also added Penal Code Section 1109. If the defense requests it, the gang enhancement allegation must be tried in a separate phase from the underlying charge. The jury first decides guilt on the substantive offense. Only if it convicts does the case move to a second phase on the gang enhancement.³

California courts have generally treated AB 333’s changes as ameliorative, meaning defendants whose cases were not yet final on appeal when the law took effect can seek its benefit. For those whose convictions were already final, relief typically requires a habeas petition.

SB 136 and SB 483: Resentencing for Old Enhancements

Before 2020, Penal Code Section 667.5(b) added one year to a sentence for each prior separate prison term the defendant had served, whether or not the prior was violent. Three qualifying priors meant three extra years, automatically. Senate Bill 136, effective January 1, 2020, narrowed this enhancement so it applies only to prior prison terms served for sexually violent offenses.⁴

SB 136 was forward-looking. Thousands of people were still serving time under the older, broader version. Senate Bill 483, effective January 1, 2022, declared those old enhancements “legally invalid” and required courts to resentence affected people. SB 483 covered both the prior-prison-term enhancements repealed by SB 136 and the three-year drug prior enhancements repealed by SB 180 in 2018.⁵

The mechanics: corrections officials identify affected people and send their information to the sentencing court, which recalls the sentence and resentences. The resentenced term must be shorter than the original unless the court finds by clear and convincing evidence that a shorter sentence would endanger public safety, and it can never be longer than the original. Courts may weigh postconviction factors like disciplinary record, rehabilitation efforts, age, and changed circumstances.⁵

A practical caveat: the statute set deadlines for identification and resentencing, but the volume overwhelmed many courts, and hearings have run past the timelines in some counties.

Proposition 36 (2024): New Theft and Drug Enhancements

California voters passed Proposition 36 in November 2024, moving in the opposite direction from the earlier reforms for certain property and drug offenses. Two new “wobbler” offenses can be charged as either misdemeanor or felony:

Possessing fentanyl, heroin, cocaine, methamphetamine, or similar drugs with two or more prior drug convictions.
Petty theft or shoplifting with two or more prior theft-related convictions.

Proposition 36 also created tiered enhancements based on the value of stolen property: one extra year for losses over $50,000, two years over $200,000, three years over $1 million, and four years over $3 million, with an additional year for every $3 million beyond that. A separate enhancement targets organized retail theft where three or more people act together, and prosecutors can now aggregate the value of stolen property across multiple incidents into a single charge.⁶

The measure includes a treatment pathway for the new drug felony: someone convicted of the treatment-mandated felony can opt into a court-approved program, and completion results in dismissal of the charge with no conviction on record.⁶

Because Proposition 36 is an initiative statute, its enhancements likely sit outside SB 81’s dismissal framework under the initiative-statute carve-out in Penal Code 1385(c)(1). Courts are expected to work out the exact boundary between what a judge can dismiss under SB 81 and what Proposition 36 protects.

What This Means If You’re Affected

If you are being sentenced now, SB 81 gives your attorney a structured argument for dismissing enhancements where any of the nine mitigating circumstances apply, and a mandatory argument where enhancements are stacked or the total sentence would exceed 20 years. Public safety is the only recognized reason to keep them, and the definition is narrow.

If you were charged with a gang enhancement, AB 333’s tighter definitions and the bifurcation option under Section 1109 change both what the prosecution has to prove and how the jury hears the evidence. If your case was still on appeal when AB 333 took effect, the new standards can apply to you.

If you are currently serving a sentence that includes a pre-2020 prior-prison-term enhancement under Section 667.5(b) for a non-sexually-violent prior, or a three-year drug prior repealed by SB 180, SB 483 requires that enhancement to be removed and your sentence recalculated. The process is initiated by corrections officials, not by you, but delays are common, and following up with counsel is often necessary.

If your case involves repeat theft, large-dollar theft, organized retail theft, or repeat hard drug possession, Proposition 36 may add exposure that the earlier reforms cannot offset, because judicial dismissal under SB 81 likely does not reach initiative-based enhancements.

One constitutional backdrop applies across all of this. Under Apprendi v. New Jersey, any fact that increases a sentence beyond the statutory maximum must be found by a jury beyond a reasonable doubt, with a narrow exception for the fact of a prior conviction.⁷ California’s reforms operate within that rule: the jury still finds the enhancement true, and the judge then decides, under SB 81, whether to dismiss it.

Outcomes vary by county because the mitigating-circumstance analysis leaves judges room to differ. Two defendants with similar records can see different results depending on where they are sentenced, which is worth factoring in when weighing plea offers or preparing for a sentencing hearing.

1
California Legislative Information. California Penal Code 1385
2
California Legislative Information. California Penal Code 186.22 (2025)
3
California Legislative Information. California Assembly Bill 333 – Participation in a Criminal Street Gang Enhanced Sentence
4
California Legislative Information. California Penal Code 667.5
5
California Legislative Information. California Penal Code 1171.1 (2021)
6
California Secretary of State. Proposition 36 Text of Proposed Laws
7
Justia U.S. Supreme Court Center. Apprendi v. New Jersey, 530 U.S. 466 (2000)