Nevada Administrative Code

NAC 484D.065 “Service brake” defined. (NRS 484D.560) “Service brake” means a brake system used for retarding, stopping and controlling the vehicle under normal operating conditions. [Dep’t of Motor Veh., Standards for Brakes Reg. § I subsec. L, eff. 1-21-76]—(Substituted in revis…

NAC 484D.070 “Standard” defined. (NRS 484D.560) “Standard” means a rule or criterion established for a minimum adequacy level of capacity, content, extent, quality, quantity, value or safety. [Dep’t of Motor Veh., Standards for Brakes Reg. § I subsec. M, eff. 1-21-76]—(Substitute…

NAC 484D.075 “Test” defined. (NRS 484D.560) “Test” means an examination, experiment or trial to determine the quality or fitness of a vehicle or its devices with respect to a standard established by NAC 484D.010 to 484D.120, inclusive. [Dep’t of Motor Veh., Standards for Brakes R…

NAC 484D.080 Applicability. (NRS 484D.560) 1. NAC 484D.010 to 484D.120, inclusive, apply to any vehicle or combination of vehicles operated upon any highway in the State, and to motor vehicles at a Department of Motor Vehicles branch office which are intended to be registered in …

NAC 484D.085 Construction. (NRS 484D.560) 1. NAC 484D.010 to 484D.120, inclusive, apply to standards for brakes and do not limit or preclude the enforcement of any other provision of NAC or NRS or other law relating to brakes or the inspection of vehicles. 2. Nothing in NAC 484D.…

NAC 484D.090 Service brake: Performance standards. (NRS 484D.560) 1. Every motor vehicle and combination of vehicles, under all conditions of loading, upon application of the service brake, must be capable of: (a) Stopping from a speed of 20 mph in the distance tabulated in subse…

NAC 484D.095 Parking brake: Performance standard. (NRS 484D.560) Every motor vehicle and combination of vehicles, except motorcycles and mopeds, upon application of the parking brake must be capable of remaining in a stationary position on any grade on which the motor vehicle or …

NAC 484D.100 Condition of brake system: General standards. (NRS 484D.560) 1. All hydraulic brake systems must be free of leaks and capable of maintaining a constant service brake pedal height without further decrease after initial application, when a continuous force of 125 pound…

NAC 484D.105 Condition of brake system: Disc and drum brake standards. (NRS 484D.560) 1. Brake shoes or disc pads must be properly installed. 2. The brake friction lining must be securely bonded or riveted to the brake shoe or disc plate and free from any cracks extending into ri…

NAC 484D.110 Condition of brake system: Air-operated brake standards. (NRS 484D.560) 1. All air-operated brake systems must be free of audible leaks at the diaphragms, piston cups, stoplight switch or at any valve in the system. 2. Every bus, truck or truck-tractor with air-opera…

NAC 484D.115 Inspection and testing. (NRS 484D.560) 1. An inspection of a vehicle or combination of vehicles may be performed in accordance with the provisions of NRS 484D.560. 2. An inspection to determine if a vehicle or combination of vehicles complies with standards establish…

NAC 484D.120 Inspection procedure. (NRS 484D.560) Any vehicle or device rejected with cause as a result of inspection by the vacuum power brake booster pedal drop test does not comply with brake standards established by NAC 484D.010 to 484D.120, inclusive. The test must be as fol…

NAC 484D.130 Coupling requirements. (NRS 484D.855) All vehicles in a combination of vehicles operated on a highway in this State must be coupled together in the manner required pursuant to the provisions of 49 C.F.R. §§ 393.70 and 393.71, which are hereby adopted by reference. A …

NAC 484D.150 Noise emission standards for operators of vehicles. (NRS 484D.410) 1. No person may operate either a motor vehicle or combination of vehicles of a type subject to registration at any time or under any condition of grade, load, acceleration or deceleration in such a m…

NAC 484D.155 Noise emission standards for new vehicles. (NRS 484D.410) 1. No person may sell or offer for sale in this State a new motor vehicle which produces a maximum noise exceeding the following noise limit at a distance of 50 feet from the centerline of travel under test pr…

NAC 484D.160 Noise emission tests: Personnel; instrumentation. (NRS 484D.410) 1. Persons selected to conduct noise measurement testing or to measure noise level of vehicles operated on a highway shall have been trained and qualified in the techniques of sound measurement and the …

NAC 484D.165 Noise emission tests: Measuring sites. (NRS 484D.410) Noise measuring sites must meet the following requirements: 1. The site used for measuring noise from vehicles on the highway in NAC 484D.150 must meet the following conditions: (a) The location must be an open ar…

NAC 484D.170 Noise emission measurements: Microphone and technician. (NRS 484D.410) The microphone and technician must be positioned as follows: 1. The microphone must be located at 49 to 51 feet from the centerline of the lane of travel of the vehicle at a height of 3 1/2 to 4 1…

NAC 484D.175 Noise emission measurements: Operation of sound level meter. (NRS 484D.410) The sound level meter must be operated in accordance with the instrument manufacturer’s instructions and as follows: 1. The A-weighting network and the fast meter response must be used. 2. An…

NAC 484D.180 Noise emission measurements: Operation of new vehicles. (NRS 484D.410) New motor vehicles tested for compliance with NAC 484D.155, together with any auxiliary equipment that would be in use while the vehicle is in motion on the highway, must be operated as follows: 1…

NAC 484D.185 Noise emission measurements: Vehicle noise level. (NRS 484D.410) The measured noise level of a vehicle must be reported as follows: 1. The sound level reading for determining compliance with NAC 484D.150 must be the highest reading obtained as the vehicle or combinat…

NAC 484D.190 Exemptions. (NRS 484D.505, 484D.560) 1. NAC 484D.190 to 484D.215, inclusive, do not apply to vehicles equipped with off-highway type tires that are only incidentally or occasionally operated on a highway. These vehicles include, but are not limited to, the following:…

NAC 484D.195 Sale and use of excessively worn tires prohibited. (NRS 484D.505, 484D.560) Except as provided in subsection 1 of NAC 484D.190 and subsection 1 of NAC 484D.205: 1. No person holding a retail seller’s permit as defined in NRS 372.125 may sell, offer for sale, expose f…

NAC 484D.200 Sale of recut and regrooved tires limited. (NRS 484D.505) 1. Except as provided in subsection 3, no person may knowingly sell or offer for sale any pneumatic tire or any vehicle equipped with any pneumatic tire which has been recut or regrooved. 2. For the purposes o…

NAC 484D.205 Use of regrooved, recapped and retreaded tires limited. (NRS 484D.505, 484D.560) 1. No person may permit the operation of, and no driver may knowingly operate on any highway any bus, as defined in NRS 484A.030, which is equipped with regrooved, recapped or retreaded …

NAC 484D.210 Faults requiring removal of tire; tread-depth measurements. (NRS 484D.505, 484D.560) 1. The outside diameters of tires used on dual wheels must be such that each tire will contact the level roadway at all times. A tire must be removed from service if it has: (a) Any …

NAC 484D.215 Surfaces for traction. (NRS 484D.505, 484D.560) 1. No tire on any vehicle operated on a roadway of this State may have on its periphery any block, stud, flange, cleat, ridge, bead or any other protuberance of metal or wood which projects beyond the tread of the tract…

NAC 484D.220 Construction of tire chains and devices which provide traction. (NRS 481.051, 484D.515) 1. Tire chains which may be used on motor vehicles in this State must be made of metal or plastic and consist of two circular loops, one on each side of a tire, which are connecte…

NAC 484D.225 Construction of traction devices. (NRS 481.051, 484D.515) 1. Except as otherwise provided in subsection 2, traction devices used on motor vehicles in this State must: (a) Be made of metal, plastic or a combination thereof; and (b) Provide additional traction to the t…

NAC 484D.230 Construction of snow tires. (NRS 481.051, 484D.515) 1. A snow tire which may be used on a motor vehicle in this State must: (a) Have a tread consisting of ribs, lugs, blocks or buttons which: (1) Are placed on the tire in a generally discontinuous pattern; and (2) Ha…

NAC 484D.235 Equipment required when street or highway posted. (NRS 481.051, 484D.520) When a street or highway in this State is marked or posted with signs requiring the use of: 1. Traction devices, tire chains or snow tires, a motor vehicle or combination of vehicles: (a) May b…

NAC 484D.240 Mounting requirements. (NRS 481.051, 484D.525) When a motor vehicle in this State must be equipped with traction devices, tire chains or snow tires, the devices or chains must be installed or the tires must be mounted on at least: 1. Two driving wheels of a motor veh…

NAC 484D.250 Purpose; scope. (NRS 484D.545) 1. NAC 484D.250 to 484D.275, inclusive, establish specifications for a unique identification emblem for use on slow moving vehicles when operated or transported on public roads. 2. These sections establish emblem dimensional specificati…

NAC 484D.255 “Slow moving vehicle” defined. (NRS 484D.545) As used in NAC 484D.250 to 484D.275, inclusive, unless the context otherwise requires, “slow moving vehicle” means any vehicle or combination of vehicles designed for and operated at speeds of 25 miles per hour or less wh…

NAC 484D.260 Description of emblem. (NRS 484D.545) The identification emblem consists of a fluorescent yellow-orange triangle with a dark red reflective border. The yellow-orange fluorescent triangle is for daylight identification. The reflective border defines the shape of the f…

NAC 484D.265 Specifications for emblem. (NRS 484D.545) 1. The emblem must be entirely visible in daylight and at night from all distances between 600 feet and 100 feet (182.88 meters to 30.48 meters) from the rear when directly in front of lawful upper beam of headlamps. 2. The s…

NAC 484D.270 Testing procedures for emblem. (NRS 484D.545) 1. The emblem must be tested in conformance with the following sections from SAE J575, Tests for Motor Vehicle Lighting Devices and Components: (a) Section B—Samples for tests; (b) Section D—Laboratory facilities; (c) Sec…

NAC 484D.275 Mounting of emblem on vehicle. (NRS 484D.545) 1. The emblem must be mounted point up as shown in subsection 2 of NAC 484D.265 in a plane perpendicular to the direction of travel plus or minus 10 degrees. It must be placed at the rear of the vehicle, unobscured and 2 …

NAC 484D.280 Application for exemption from standards: Content; filing. (NRS 484D.440) 1. A person may apply for a permit for an exemption from the provisions of subsection 2 of NRS 484D.440 by filing an application therefor in writing. The application must include: (a) The name …

NAC 484D.285 Sworn statement required for exemption. (NRS 484D.440) The Director of the Department of Motor Vehicles may issue a permit for an exemption from the provisions of subsection 2 of NRS 484D.440 if the applicant provides to the Director: 1. A sworn statement by: (a) The…

NAC 484D.290 Prohibition on application for exemption. (NRS 484D.440) The owner of a motor vehicle with a gross weight rating of 10,000 pounds or more which is subject to the provisions of 49 C.F.R. Part 393.60(b) may not apply for a permit for an exemption from the provisions of…

NAC 484D.300 Definitions. (NRS 484D.615) As used in NAC 484D.300 to 484D.455, inclusive, unless the context otherwise requires, the words and terms defined in NAC 484D.305 to 484D.365, inclusive, have the meanings ascribed to them in those sections. (Supplied in codification; A b…

NAC 484D.305 “Cargo body” defined. (NRS 484D.615) “Cargo body” means the part of the body of a vehicle which is used to haul cargo. [Dep’t of Transportation, Combination of Vehicles § 2, eff. 5-13-82]—(Substituted in revision for NAC 484.305)

NAC 484D.310 “Cargo carrying unit length” defined. (NRS 484D.615) “Cargo carrying unit length” means the distance from the front of the first cargo unit to the rear of the last cargo unit of a combination of vehicles. (Added to NAC by Dep’t of Transportation by R053-05, eff. 9-7-…

NAC 484D.315 “Cargo unit” defined. (NRS 484D.615) “Cargo unit” means a full-sized truck, a trailer, a semitrailer, or a semitrailer which has been converted to a trailer by use of a converter gear dolly. The term does not mean a truck-tractor. [Dep’t of Transportation, Combinatio…

NAC 484D.320 “Combination of vehicles” defined. (NRS 484D.615) “Combination of vehicles” has the meaning ascribed to it in NRS 484A.050. [Dep’t of Transportation, Combination of Vehicles § 4, eff. 5-13-82]—(NAC A by R053-05, 9-7-2005)—(Substituted in revision for NAC 484.315)

NAC 484D.325 “Converter gear dolly” defined. (NRS 484D.615) “Converter gear dolly” has the meaning ascribed to it in NRS 706.056. [Dep’t of Transportation, Combination of Vehicles § 5, eff. 5-13-82]—(Substituted in revision for NAC 484.320)