The 2017 Tennessee Preemption Statute — HB 0173 / Public Chapter 39

Last verified: May 2026

The 2016 Memphis and Nashville Ordinances

Tennessee's two largest cities tried to do what 24-states-without-citizen-initiative voters cannot do directly: substitute civil citation for criminal arrest at the local level.

In September 2016, the Metropolitan Nashville Council passed an ordinance giving Metro police officers discretion to issue a $50 civil citation for possession of half an ounce or less of marijuana, in lieu of arresting under state law. The ordinance was passed during a national wave of municipal "cite-and-fine" reforms led by Philadelphia, Pittsburgh, Tampa, and others.

In October 2016, the Memphis City Council passed a substantially identical ordinance. Council members Berlin Boyd and Martavius Jones were the principal co-sponsors. The Memphis ordinance emerged from a sustained Memphis civil-rights and civil-libertarian advocacy environment focused on the city's documented racial disparities in marijuana enforcement (Shelby County 2010 data: 83.2% of those arrested for possession were Black).

The Slatery Opinion — November 16, 2016

On November 16, 2016, Tennessee Attorney General Herbert Slatery III (R, in office 2014–2022) issued an opinion concluding that the Nashville and Memphis ordinances were preempted by state law: "the ordinance displaces the more stringent state law criminal penalties that the General Assembly has prescribed with substantially reduced civil fines by allowing an officer to issue a municipal civil citation, in lieu of a criminal warrant."

Within hours of the Slatery opinion, Memphis suspended enforcement of its ordinance. Memphis City Court Clerk Kay Robilio later confirmed that only one civil citation had ever been issued under the Memphis ordinance during its brief operational window. Nashville's ordinance never went into operational effect; the city deferred implementation pending the AG opinion and any legislative response.

HB 0173 — The Codification of Slatery's Position

The 2017 General Assembly responded to the Slatery opinion by codifying the preemption position in statute. House Bill 0173 was introduced by Rep. William Lamberth (R-Portland) in the House and carried by the Senate (Sen. Mark Norris, R-Collierville, Senate Majority Leader at the time). The bill amended T.C.A. § 39-17-454 (the existing local-preemption framework around drug-paraphernalia regulation) to extend preemption explicitly to all local cannabis ordinances.

The operative language forbids any county, city, metropolitan government, or other local government from enacting any ordinance, resolution, or rule that is "contrary to or inconsistent with state law" relating to controlled substances, including civil-citation alternatives, lesser-included penalties, decriminalization frameworks, or any structural deviation from the T.C.A. §§ 39-17-417 / -418 charging framework.

HB 0173 passed the House and Senate on substantial Republican majorities. Gov. Bill Haslam (R, 2011–2019) signed the bill on April 12, 2017, and it took effect immediately.

The Lamberth Quote

Rep. Lamberth's defense of the preemption framework, widely cited in 2016–2017 coverage and subsequent reform debates: "You can't allow an officer at their whim to treat two different individuals who have potentially committed the same crime in drastically different ways depending on what that officer feels like at a given time."

The argument is uniformity: that statewide controlled-substances policy must be statewide and that local discretion produces unequal application. The reform-side counter-argument is that statewide uniformity at a more punitive level is also unequal — that disparate-impact data (3.2x Black-white arrest disparity per ACLU 2020) shows officer discretion is already producing unequal application within the existing uniform framework.

What Preemption Forecloses

Under T.C.A. § 39-17-454 as amended in 2017, Tennessee cities and counties cannot:

• Pass civil-citation ordinances substituting fines for arrest.
• Pass "lowest priority" enforcement ordinances directing local police away from marijuana cases.
• Pass medical-cannabis local frameworks.
• Authorize local cultivation, distribution, or dispensaries of any kind.
• Adjust paraphernalia penalties downward.
• Authorize on-site consumption at local venues.

What cities and counties can do, within the preempted framework:

• Local elected prosecutors (district attorneys) can exercise charging discretion (declination). See Funk & Mulroy.
• Local police chiefs can issue internal guidance encouraging officer discretion at lawful stops — without binding the legal framework.
• Local courts can grant judicial diversion under T.C.A. § 40-35-313 to first-time offenders.

The Ballot-Initiative Compounding

The 2017 preemption is structurally compounded by Tennessee's lack of a citizen ballot initiative. Tennessee is one of 24 states without statewide citizen-initiated ballot measures. Constitutional amendments require approval by majority in two consecutive General Assemblies (with a higher threshold in the second), then voter ratification equal to a majority of gubernatorial votes — one of the most demanding amendment processes in the U.S. See the no-ballot-initiative page.

The combined effect is total: there is no citizen-initiative path to legalization, no local-ordinance path to decriminalization, and no constitutional path that does not run through the same Republican supermajority that has refused to advance reform bills in every session since 2018.

Lamberth's 2024 Restatement

In March 2024 — on the question of whether Tennessee should consider a legislative ballot referendum on cannabis — Rep. Lamberth restated the leadership posture: "A ballot initiative is not the way to go about this. It should be debated in the halls of the legislature." The position is internally consistent with the 2017 preemption framework: cannabis policy belongs in the General Assembly, not in local ordinances and not on the ballot.

Sen. Raumesh Akbari's SB 2097 (binding medical-cannabis ballot referendum) and Sen. London Lamar's SB 0960 (advisory ballot questions) were the 2026 efforts to put the question to voters via legislative referendum — the only available pathway under the preemption framework. Both failed in committee.

The Partial Workaround — Prosecutorial Declination

The only meaningful local lever surviving the 2017 preemption is prosecutorial discretion. Davidson County DA Glenn Funk announced declination on July 1, 2020 ("Marijuana charges do little to promote public health, and even less to promote public safety"). Shelby County DA Steve Mulroy (sworn September 1, 2022) deprioritizes "lesser offenses like marijuana prosecution." But neither DA can prevent the arrest itself, and the April 2025 Tennessee Lookout / Marshall Project investigation documented that Memphis Police Department continues to make felony cross-border-quantity charges that DA Mulroy then often reduces post-arrest. See the Funk & Mulroy page.