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North Dakota Exhaust & Muffler Laws (2026)

Info: Muffler in good working order required; cutout/bypass and excessive/unusual noise prohibited (no fixed dB) — N.D. Cent.

InfoVerified Jun 19, 2026

Muffler in good working order required; cutout/bypass and excessive/unusual noise prohibited (no fixed dB) — N.D. Cent. Code §39-21-37.

Official source: ndlegis.gov →

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