Radar Detectors in Nevada: Legal in Cars, Barred From Commercial Trucks

The absence is provable from the structure of the code rather than from silence. Nevada traffic law lives in five chapters: 484A on administration and enforcement, 484B on rules of the road, 484C on driving under the influence, 484D on equipment and inspections, and 484E on accidents and duties. A full-text search of all five returns zero occurrences of the words radar and detector. Chapter 484D is also unusually granular about what a vehicle may and may not carry: NRS 484D.205 enumerates permitted additional lighting down to a single running-board courtesy lamp on each side and inside door-mounted red reflectorizing material, and NRS 484D.490 separately regulates television-type receiving equipment visible from the driver seat. A legislature that wrote those rules and never wrote a radar-detector rule did not simply overlook the subject.

The one Nevada instrument that does reach detectors is NAC 706.2471, adopted under the authority NRS 706.171(1)(b) gives the Department of Motor Vehicles to adopt by reference rules issued by the United States Department of Transportation. Subsection 1 adopts 49 C.F.R. Parts 40, 382, 383, 385, 387, 390 to 393 inclusive, 395, 396 and 397 together with Appendices B and G of 49 C.F.R. Chapter III, Subchapter B, as those regulations existed on May 30, 2012. Part 392, Subpart G contains section 392.71, which provides that no driver shall use a radar detector in a commercial motor vehicle or operate a commercial motor vehicle equipped with or containing any radar detector, and that no motor carrier shall require or permit a driver to violate that rule. The wording bans possession in the cab as well as use, and it puts the carrier on the hook alongside the driver. Because Nevada froze its adoption at the 2012 edition, the version in force here is the text as it stood then, which has been unchanged since 1993.

Which Nevada trucks that reaches is set by NAC 706.2471(1)(g), which replaces the federal definition of commercial motor vehicle with a Nevada one. For interstate commerce the line is a vehicle designed to carry more than eight passengers including the driver, a placarded hazardous-materials load, or a gross vehicle weight rating, gross combination weight rating or gross vehicle weight of 10,001 or more pounds, whichever is greater. For intrastate commerce the passenger and hazardous-materials categories carry over but the weight line rises to 26,001 or more pounds. A Nevada contractor running a 14,000-pound box truck entirely within the state is therefore outside the detector ban, while the identical truck crossing into a neighbouring state on an interstate run is inside it.

There is a second Nevada carve-out worth knowing. Under NAC 706.2471(1)(g)(2)(c), a vehicle owned or operated by a motor carrier subject to the jurisdiction of the Nevada Transportation Authority, and not otherwise within the passenger or hazardous-materials categories, is subject only to 49 C.F.R. sections 392.2, 392.4, 392.5 and 392.9 and to Parts 40, 382, 383, 385, 390, 391, 393, 395, 396 and 397. Section 392.71 appears nowhere on that list, so the radar-detector prohibition does not reach those vehicles at all even though they are commercial.

What can still catch a private Nevada driver is where the detector is stuck, not what it does. NRS 484D.435(1) forbids driving with any sign, poster or other nontransparent material upon the front windshield, side wings or side or rear windows that obstructs the driver clear view of the highway or any intersecting highway, and subsection 2 gives only one express safe harbour, the 6-inch square area of the lower corner of the windshield farthest removed from the driver, plus anything federal or state law requires to be displayed there. A suction-cup detector on the driver half of the glass is the exposure. A unit sitting on the dashboard or clipped to a visor is outside the section entirely, because the section reaches material placed on the glass.

Nevada also has no statute on laser jammers, radar scramblers or any active countermeasure. The same five-chapter search that finds no radar detector finds no jamming or scrambling device either, so Nevada has legislated on neither side of the question. That is a genuine gap in the state code rather than a permission, and it does not displace the separate federal rules that govern deliberately transmitting on a licensed band.

900 only makes a civil infraction of an act that those chapters forbid. A commercial driver is in a different position. 2471(2) authorises enforcement officers of the Department of Motor Vehicles to enter a carrier property during regular business hours to inspect its records, facilities and vehicles, including cargo space and warehouses, in order to enforce the adopted federal regulations. 756(1)(d) makes it unlawful to fail to obey any order, decision or regulation of the Authority or the Department, and a person who does so is guilty of a misdemeanor punishable by a fine of not less than $100 nor more than $1,000, imprisonment in the county jail for not more than 6 months, or both. 435. 0623. 704(1) allows 90 calendar days from issuance to pay or to request a hearing.