Model Expungement Programs

Last verified: April 2026

Illinois: The Most Comprehensive

Illinois set the national standard for cannabis expungement through a deliberate, multi-agency approach that combined executive action, legislative mandate, and prosecutorial initiative.

Total: 780,000+ charges cleared.

What makes Illinois the model is not just the numbers but the infrastructure. The state created the New Leaf Illinois program with a dedicated hotline (855-963-9532) for individuals seeking information about their expungement status. Cabrini Green Legal Aid and other organizations provide free legal assistance for cases that require petition-based processing.

Illinois also tied its cannabis program to restorative justice: 25% of cannabis tax revenue flows to the R3 (Restore, Reinvest, Renew) program, directing funds to communities most harmed by cannabis enforcement. This connection between legalization revenue and enforcement repair is central to the Illinois model.

California: Technology-Driven at Scale

California's model is notable not for a single legislative act but for the iterative, technology-driven approach that evolved over six years:

The legislative arc:

• Proposition 64 (2016) — Created the legal right to petition for resentencing or dismissal of prior cannabis convictions
• AB 1793 (2018) — Required the Department of Justice to proactively identify eligible records and refer them to county prosecutors
• AB 1706 (2022) — Set a firm deadline for all counties to complete review and clearance of eligible records

The technology breakthrough: Code for America, a civic technology nonprofit, built an automated tool called Clear My Record that could analyze criminal records and determine eligibility at a speed no human review process could match. The system processed 10,000 records per minute — work that would have taken prosecutors decades.

The prosecutors: San Francisco DA George Gascón was the first to use Code for America's tools, clearing 8,000 cases in San Francisco. When he became Los Angeles County DA, he applied the same approach at massive scale, clearing 125,000 convictions in LA County. Attorney General Rob Bonta oversaw statewide implementation.

California's total exceeds 200,000 convictions cleared. The model demonstrates that technology can overcome the single biggest obstacle to petition-based expungement: the impossibility of individually reviewing millions of records.

New Jersey: Fastest Large-Scale Clearance

New Jersey achieved what no other state has: clearing hundreds of thousands of records through a single judicial action.

The Cannabis Regulatory, Enforcement Assistance, and Marketplace Modernization Act (CREAMMA) was enacted in February 2021. But the truly unprecedented step came months later. In July 2021, the New Jersey Supreme Court issued an administrative order directing the Administrative Office of the Courts to identify and dismiss 362,000 cannabis cases en masse.

This was not expungement through individual petitions. It was not automatic processing through a state agency over months or years. It was a court order that dismissed and expunged hundreds of thousands of cases in a single action. The speed was unmatched — from legislation to mass clearance in approximately five months.

The New Jersey model is the fastest path available when a state supreme court is willing to exercise its administrative authority over the court system. It bypasses the implementation delays that plague automatic systems (Connecticut: $8M in IT, multi-year timeline) and the low uptake of petition systems (6.5–15% filing rate).

New York: True Expungement Under MRTA

New York's Marijuana Regulation and Taxation Act (MRTA), signed in March 2021, is significant for a specific legal reason: it provides for true expungement of cannabis records. Prior New York law offered only sealing — records were hidden but not destroyed. MRTA created the state's first genuine expungement mechanism.

This distinction matters enormously for immigration purposes. Immigration attorneys have argued that true expungement under MRTA carries greater weight than sealing when challenging a finding of inadmissibility, because expungement more closely resembles the vacatur that immigration courts recognize. While this argument remains legally contested, it gives New York's approach a practical advantage for the state's large immigrant population.

More than 200,000 cases have been processed under MRTA's automatic expungement provisions. The Office of Cannabis Management (OCM) coordinates implementation with the court system. New York's program is also notable for its scope: MRTA covers not just possession but certain sale and manufacturing offenses, providing broader relief than many states' automatic systems.

The combination of true expungement, broad offense coverage, and the immigration implications makes MRTA one of the most legally significant expungement statutes in the country.

Missouri: Constitutional Protection

Missouri's Amendment 3, approved by voters in November 2022, is unique for a single reason that makes it the most durable expungement program in the nation: it is enshrined in the state constitution.

This means the Missouri legislature cannot weaken, delay, or repeal the expungement provisions through ordinary legislation. Changing them would require a new constitutional amendment — either through another ballot initiative or a two-thirds vote in both legislative chambers followed by voter approval. No other state's cannabis expungement program has this level of protection.

Amendment 3 targets more than 140,000 records for automatic clearance. Implementation has been described as a "Herculean task" by state officials, requiring coordination across 115 independent county court systems, many with non-standardized record-keeping practices.

To fund this massive undertaking, Missouri dedicated revenue from a 2% cannabis tax specifically to expungement implementation. This dedicated funding mechanism ensures that record clearance does not depend on annual legislative appropriations — another structural safeguard that other states lack.

The Missouri model addresses the fundamental vulnerability of every other expungement program: legislative rollback. In states where expungement was created by statute, a future legislature could weaken or eliminate it. Missouri voters removed that possibility.

Lessons for Other States

These five programs share several features that contribute to their success:

• Automatic processing — Every model program either started with or evolved toward automatic clearance
• Dedicated funding — Illinois (R3 program), Missouri (2% tax), and Minnesota ($5.9M appropriation) all secured specific funding for implementation
• Multi-agency coordination — The most successful programs involve governors, attorneys general, prosecutors, courts, and state police working together
• Free legal assistance — Programs like New Leaf Illinois and Arizona's Reclaim Your Future provide free help for individuals navigating the system
• Connection to equity — The best programs explicitly acknowledge the racial disparities that created the records being cleared

The remaining states that have legalized cannabis but not yet enacted comprehensive expungement — including several with legal markets generating hundreds of millions in tax revenue — have working models to follow. The question is one of political will.