Source: http://semasan.com/resources/exhaust-noise-laws-state
Timestamp: 2019-04-18 16:49:04+00:00

Document:
(a) The exhaust of every internal combustion engine used on any vessel shall be effectively muffled by equipment so constructed and used as to muffle the noise of the exhaust in a reasonable manner. The use of cutouts is prohibited, except for vessels competing in a regatta or official boat race, and for such vessels while on trial runs.
§27-37-601. Noise or smoke producing devices prohibited.
(a) The sale or use of cutouts on any motor-driven vehicle while on the public roads, highways, streets, and alleys of Arkansas is prohibited.
(b) Any person found guilty in any court of Arkansas of violating this section, in whole or in part, shall be deemed guilty of a misdemeanor and subject to a fine of not less than ten dollars ($10.00) nor more than five hundred dollars ($500).
(a) A motor vehicle shall be equipped at all times with a muffler that is in good working order and that is in constant operation to prevent excessive or unusual noise.
(b) A person shall not use a muffler cutout, bypass or similar device on a motor vehicle on a highway.
(c) The engine and power mechanism of a motor vehicle shall be equipped and adjusted to prevent the escape of excessive fumes or smoke.
(d) Beginning with motor vehicles and motor vehicle engines of the 1968 model year, motor vehicles and motor vehicle engines shall be equipped with emissions control devices that meet the standards established by the director of environmental quality.
(e) A person who violates this section is subject to a civil penalty of at least one hundred dollars.
(f) This section does not apply to an electrically powered motor vehicle.
(2) A muffler is a device consisting of a series of chamber or baffle plates or other mechanical design for the purpose of receiving exhaust gas from an internal combustion engine and effective in reducing noise.
§ 321.436 Mufflers, prevention of noise.
§ 8-1739 Mufflers and noise suppressing systems.
§ 189.020. Equipment of vehicle not to be nuisance or menace.
§ 189.140. Mufflers -- Noise regulation.
§ 224.30-190 Modification of motor vehicle exhaust system to increase noise prohibited.
Chapter 90 § 7. Brakes, Lights and Other Equipment; Standards.
Every motor vehicle so operated shall be provided with a muffler or other suitable device to prevent unnecessary noise and with a suitable bell, horn or other means of signaling, with suitable lamps, and with a lock, key or other device to prevent such vehicle from being set in motion by unauthorized persons, or otherwise contrary to the will of the owner or person in charge thereof.
1. Muffler required. A person may not operate a motor vehicle unless that vehicle is equipped with an adequate muffler properly maintained to prevent excessive or unusual noise. For purposes of this subsection, “excessive or unusual noise” includes motor noise emitted by a motor vehicle that is noticeably louder than similar vehicles in the environment.
2. Cutouts prohibited. A muffler or exhaust system may not be equipped with a cutout, bypass or similar device.
4. Exhaust system fastened to engine. The entire exhaust system must be complete, without leakage and securely fastened to the engine block and frame.
6. Defense for noise violations by motor vehicles. The following are defenses to a violation of subsection 1 or 3.
(a) If a muffler or exhaust system of a motor vehicle as defined in section 101, subsection 42, not including a motorcycle, does not emit noise in excess of 95 decibels as measured in accordance with standards and specifications outlined in standard J-1169 adopted by the Society of Automotive Engineers in May 1998, subsections 1 and 3 do not apply. A person served with a Violation Summons and Complaint charging a violation of subsection 1 or 3 must provide satisfactory evidence that the muffler or exhaust system does not emit noise in excess of 95 decibels as measured in accordance with standards and specifications outlined in standard J-1169 adopted by the Society of Automotive Engineers in May 1998. Measurements must be made by a participating certified inspection station.
(1) A motor vehicle, while being operated on a highway or street, shall be equipped with an exhaust system in good working order to prevent excessive or unusual noise and shall be equipped to prevent noise in excess of the limits established in this act.
(a) A motor vehicle with a gross vehicle weight rating of 8,500 pounds or more–83 DBA.
(b) A motorcycle or a moped–83 DBA.
2. Muffler cutouts: Muffler cutouts shall not be used and no vehicle shall be driven in such manner or condition that excessive and unnecessary noises shall be made by its machinery, motor, signaling device, or other parts, or by any improperly loaded cargo. The motors of all motor vehicles shall be fitted with properly attached mufflers of such capacity or construction as to quiet the maximum possible exhaust noise as completely as is done in modern gas engine passenger motor vehicles. Any cutout or opening in the exhaust pipe between the motor and the muffler on any motor vehicle shall be completely closed and disconnected from its operating lever, and shall be so arranged that it cannot automatically open, or be opened or operated while such vehicle is in motion.
§ 61-9-435 Exhaust noise limitation.
(1) Except as provided in subsection (3), a person may not operate a motor vehicle with an exhaust system that emits a noise in excess of 95 decibels, as measured by the society of automotive engineers’ standard j1169 (May 1998).
§ 39-21-37. Muffler -- Prevention of noise and smoke.
§ 484D.415 Mufflers: Prevention of emissions.
§ 815.250 Operation without proper exhaust system; exemptions; penalty.
§ 4523 Exhaust systems, mufflers and noise control.
§ 55-9-202 Mufflers -- Muffler cutouts prohibited -- Penalty.
(a) A vehicle shall be equipped, maintained, and operated to prevent excessive or unusual noise.
(a) A motor vehicle equipped by a manufacturer with air pollution control devices shall maintain the devices in good working order and in constant operation.
Subsection (3) does not apply to a motor vehicle altered and modified to use clean fuel, as defined under Section 59-13-102, when the emissions from the modified or altered motor vehicle are at levels that comply with existing state or federal standards for the emission of pollutants from a motor vehicle of the same class.
The provisions of this section shall not apply to (i) any antique motor vehicle licensed pursuant to § 46.2-730, provided that the engine is comparable to that designed as standard factory equipment for use on that particular vehicle, and the exhaust system is in good working order, or (ii) converted electric vehicles.
(1) No person shall operate any motor vehicle or any combination of such vehicles upon any public highway under any conditions of grade, load, acceleration or deceleration in such a manner as to exceed the maximum permissible sound levels for the category of vehicle in Table I, as measured at a distance of 50 feet (15.2 meters) from the center of the lane of travel within the speed limits specified, under procedures established by the state commission on equipment in chapter 204-56 WAC, "procedures for measuring motor vehicle sound levels."
(2) Every motor vehicle operated upon the public highways shall at all times be equipped with an exhaust system and a muffler in good working order and constant operation to prevent excessive or unusual noise.
(3) No person shall operate a motor vehicle in such a manner as to cause or allow to be emitted squealing, screeching or other such noise from the tires in contact with the ground because of rapid acceleration or excessive speed around corners or other such reason, except that noise resulting from emergency braking to avoid imminent danger shall be exempt from this provision.
(4) No person shall operate any motor vehicle upon any public highway if the vehicle exhaust system exceeds the maximum permissible sound levels of Table II for the category and year of vehicle, as measured at a distance of twenty inches (0.5 meter) from the exhaust outlet under procedures established by the state commission on equipment in chapter 204-56 WAC, "procedures for measuring motor vehicle sound levels."
(5) No person shall sell or offer for sale a NEW MOTOR VEHICLE except an off-highway vehicle, which produces a maximum noise exceeding the noise levels in Table III at a distance of 50 feet (15.2 meters) under acceleration test procedures established by the state commission on equipment in chapter 204-56 WAC, "procedures for measuring motor vehicle sound levels."

References: §27

§ 321

§ 8

§ 189

§ 189

§ 224
 § 7

§ 61

§ 39

§ 484

§ 815

§ 4523

§ 55
 § 46