Texas catalytic converter theft — Penal Code § 31.21
Texas catalytic converter theft is a criminal offense under Penal Code § 31.21. Base conduct is classified as a third-degree felony; enhancements and aggravators can move the punishment range higher. Below: the controlling statute text, the full punishment range, common defense theories, and what to do if you have been charged in Collin, Dallas, Denton, or Tarrant County.
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Classification: State jail felony (third-degree felony with aggravators)
Punishment range: State jail felony (180 days–2 years in a state jail and up to $10,000) under § 31.21(d); a third-degree felony (2–10 years + $10,000, § 12.34) under § 31.21(e) if the actor has a prior § 31.21 conviction, conspired to commit theft of a converter, or possessed a firearm during the offense. Stealing a converter may also be charged as theft under § 31.03, graded by value, with a statutory presumption that a person possessing a removed converter unlawfully appropriated it.
The controlling statute
Texas Penal Code § 31.21 — added to address the surge in catalytic converter thefts driven by precious-metal commodity prices — makes theft of a converter a third-degree felony regardless of dollar value. Ordinary theft of an item under $30,000 would be a state jail felony or misdemeanor, but the Legislature specifically elevated converter theft because of the disproportionate damage to vehicles and the public-safety impact of disabled cars. The statute also reaches buyers and recyclers who knowingly purchase stolen converters.
Classification & punishment range
| Element | Detail |
|---|---|
| Statute | Texas § 31.21 |
| Cluster | Theft & Property |
| Classification | State jail felony (third-degree with aggravators) |
| Range | State jail felony (180 days–2 years in a state jail and up to $10,000) under § 31.21(d); a third-degree felony (2–10 years + $10,000, § 12.34) under § 31.21(e) if the actor has a prior § 31.21 conviction, conspired to commit theft of a converter, or possessed a firearm during the offense. Stealing a converter may also be charged as theft under § 31.03, graded by value, with a statutory presumption that a person possessing a removed converter unlawfully appropriated it. |
| Last reviewed | 2026-05-15 |
Elements the State must prove
To convict on a Texas § 31.21 charge, the State must prove every element beyond a reasonable doubt:
- Defendant unlawfully appropriated a catalytic converter from another's vehicle
- With intent to deprive the owner of the converter
- The converter was attached to a vehicle owned by another person
- Defendant acted without the effective consent of the owner
Defense strategies
L and L Law Group, PLLC develops the following defense strategies on every Catalytic Converter Theft case:
- Lack of intent to deprive — mechanic removing converter for repair with authorization
- Mistake of fact about vehicle ownership or scrapyard status under § 8.02
- Insufficient identification — the converter is not traceable to the alleged vehicle
- Lawful salvage purchase with documented scrap-metal receipts
- Misidentification at scrapyard — the State must prove defendant was the seller
- Constitutional challenges to enhanced classification under proportionality doctrines
Enhancements & collateral consequences
Already at third-degree felony regardless of dollar value, but additional charges often stack: § 28.03 (Criminal Mischief — vehicle damage), § 31.16 (Organized Retail Theft), and § 71.02 (Engaging in Organized Criminal Activity) when multiple suspects coordinate. Federal exposure under 18 U.S.C. § 2342 or NHTSA regulations may apply for cross-state trafficking. Repeat-offender enhancement under § 12.42 applies normal habitual-felony rules.
Key Legal Terms
- Catalytic Converter
- Vehicle emissions-control device containing precious metals; unauthorized possession of a removed converter is a state jail felony under § 31.21 (a third-degree felony with a prior § 31.21 conviction, a theft conspiracy, or a firearm during the offense).
- Theft by Receiving (§ 31.03(b)(2))
- Appropriating property knowing it was stolen by another; applies to scrapyard buyers and resellers of stolen converters.
- Occupations Code Chapter 1956
- Texas scrap-metal dealer registration law requiring photo ID, vehicle records, and reporting of catalytic-converter sales.
Frequently Asked Questions
Why is converter theft a felony when other small thefts are misdemeanors?
Can I be charged if I bought a converter at a scrapyard?
Is removing my own converter a crime?
What if the converter wasn't worth much in scrap?
Will my vehicle damage be added to the charge?
References & Authoritative Sources
About the Authors
Reggie London
Co-Founding Partner · Texas Bar No. 24043514
Reggie London co-founded L and L Law Group with a focus on federal criminal defense, complex felony defense, and TEA/SBEC matters. Licensed in Texas, admitted to TXND and TXED.
Njeri London
Co-Founding Partner · Texas Bar No. 24043266
Njeri London co-founded L and L Law Group with a focus on DWI defense, family violence cases, and juvenile defense. Licensed in Texas, admitted to TXND and TXED.
Charged with Catalytic Converter Theft? Talk to L and L Law Group.
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