Yes, muffler deletes are legal in Arkansas under specific conditions, but non-compliance with state noise and emissions laws risks citations or vehicle impoundment.
Arkansas allows muffler deletes if the vehicle retains a functional exhaust system that meets federal EPA noise standards (≤92 dB) and Arkansas Department of Environmental Quality (ADEQ) emissions requirements. Local law enforcement, including the Arkansas State Police and municipal agencies, enforce these rules, particularly in urban areas like Little Rock and Fayetteville. Recent 2026 compliance shifts emphasize stricter enforcement of aftermarket modifications, with ADEQ aligning state rules to federal EPA guidelines.
Key Regulations for Muffler Deletes in Arkansas
- Noise Limits: Vehicles must not exceed 92 decibels (dB) when tested under Arkansas State Police procedures, per Ark. Code Ann. § 27-36-103. Exceeding this threshold may result in a Class C misdemeanor.
- Emissions Compliance: Modifications cannot violate ADEQ’s vehicle emissions standards, as outlined in Ark. Code Ann. § 8-19-105. Failure to comply may trigger emissions testing failures or registration holds.
- Local Ordinances: Cities like Little Rock and Fort Smith may impose additional restrictions, including mandatory muffler inspections during annual vehicle safety checks. Violations can lead to fines up to $500 under municipal codes.