Nevada Oversize Load Permits, Regulations & Axle Rules

Nevada's baseline rule is daylight-only movement for all oversized and overweight loads. Permitted loads may not travel during hours of darkness, on weekends, or during holiday hours unless the permit or special Department instructions explicitly allow it. Darkness is defined precisely: the blackout runs from 30 minutes after sunset through 30 minutes before sunrise. The weekend restriction is broader than Saturday and Sunday alone: it begins 30 minutes after sunset on Friday and lifts 30 minutes before sunrise on Monday, which means a weekend block typically runs roughly 60 hours.

Six holidays are full no-travel periods, and the restriction window extends past the calendar date based on which day of the week the holiday falls on. A Monday holiday (Memorial Day, Labor Day) shuts down Friday at noon and doesn't reopen until midnight Monday. A Friday holiday shuts down Thursday at noon and stays closed through midnight Sunday, a four-day blackout. Thanksgiving is the most aggressive: the window runs from noon Wednesday through midnight Sunday, five days. The six holidays are New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas. New Year's Day is shorter when it falls midweek, running 6 AM through 9 PM on the holiday itself.

Nevada also has a corridor-specific restriction on I-15 that carriers running the Las Vegas/California line need to know. Northbound on I-15 between the California border and Las Vegas (Exit 33), any single-trip load wider than 12 feet is prohibited from 2:00 PM to 10:00 PM on Fridays. The mirror restriction applies southbound on Sundays in the same window. Loads wider than 12 feet on a single-trip permit may also face additional safety requirements for travel during darkness, holiday hours, or on weekends at the Department's discretion.

Nevada sets no metro rush-hour curfews beyond the I-15 corridor restriction. Convoys are prohibited unless each vehicle's permit specifically authorizes the movement. Any permitted load must pull over and halt whenever traffic, weather, or other conditions are determined by NDOT or law enforcement to constitute a hazard; the permit may be temporarily suspended on the spot. Headlights must be illuminated whenever the oversized vehicle is operating.

Nevada's commodity-specific rules span implements of husbandry, utility poles, baled hay, cranes, and divisible overweight loads.

Implements of husbandry receive free permits on interstate and controlled-access highways. An annual permit covers equipment from 8'6" to 14 feet wide, 14 to 15 feet high, or 70 to 110 feet long. Single-trip permits cover anything wider than 8'6" up to 17 feet wide, over 15 feet high, or over 110 feet long. Equipment 14 feet wide or under may be driven or towed during daylight with a rear pilot car; equipment over 14 feet wide must be loaded and transported on another vehicle. Owner-operators on non-interstate, non-controlled-access highways are exempt from the permit requirement entirely.

Baled hay is the one commodity that exceeds the standard 14-foot height limit without a permit: loads of baled hay may be 15 feet high.

Vehicles operated by a public utility for transporting poles are exempt from all length restrictions, including the 70-foot combination limit, the 75-foot overall cap, and the 10-foot overhang limit.

Self-propelled cranes exceeding maximum authorized weight are eligible for single-trip or annual permits; applications must include a detailed schematic diagram with dimensions and weight in transport position.

Nevada also issues permits to divisible "commodity" loads (goods that are easily reducible, such as gravel, sand, fruit, vegetables, recyclable materials, or refuse) that exceed 80,000 lbs gross weight and are no longer than 70 feet. These are called SOV (Shorter Overweight Vehicle) permits and are distinct from standard nonreducible OS/OW permits.

Nevada calls its top-tier permit category a Super Load. A load becomes a Super Load the moment it exceeds any one of the following thresholds, with the triggers differing by road type for width only. On two- or three-lane highways: more than 17 feet wide, more than 18 feet tall, more than 200 feet long, or more than 500,000 pounds gross. On four-or-more-lane highways: more than 19 feet wide (the width bar rises on multilane roads), with the same 18-foot height, 200-foot length, and 500,000-pound weight thresholds. Nevada's 500,000-pound gross weight trigger is one of the highest in the country; loads under that figure can still be permitted through the standard OS/OW process regardless of how heavy they are.

All Super Load applications must be submitted online and received at least 10 business days before the planned move date, no exceptions, no same-week processing. If the application requires special research or inspection by NDOT's engineering staff, the Department charges those costs back to the applicant, so engineering-heavy Super Loads can carry significant review fees beyond the standard permit price.

A route survey is mandatory for any Super Load exceeding 18 feet in height. The Department may also require additional pilot cars, utility coordination escorts, and law enforcement traffic control for all Super Loads.

Nevada's survey requirement is carrier-performed, not state-performed, and the obligation triggers at two dimensions: 20 feet or more wide, or 18 feet or more tall. At those thresholds the Department may require the trucking company to survey the route before the permit issues. The survey must document the safety of travel on the route, identify where obstructions exist, and produce a plan for removing or adjusting any conflicts. For Super Loads specifically over 18 feet tall, the survey is mandatory rather than at the Department's discretion.

The width survey threshold (20 feet) sits above the Super Load width trigger on multilane roads (19 feet) but below it on two- and three-lane roads (17 feet), so on narrow roads a Super Load can be triggered before the survey requirement kicks in; the survey still applies once the load hits 20 feet regardless of road type.

Route limitations in Nevada may be imposed by NDOT for low underpasses, substandard or load-rated-limited bridges, road subgrade or surface conditions, grade and alignment constraints, or seasonal weather. NDOT maintains prohibited route lists for vehicles over 8'6" wide or over 70 feet long. There's no separate state-performed bridge engineering review analogous to what some other states run; the engineering responsibility rests with the applicant, and special research or engineering inspection costs are charged to the permittee when NDOT staff time is required.

No route survey is required by length alone; Nevada sets no length-based survey trigger.

Nevada's law enforcement escort requirement is entirely discretionary: there's no dimension or weight that automatically mandates a sworn officer. The Nevada Administrative Code gives NDOT the authority to require a permittee to furnish additional pilot cars and coordinate traffic control with law enforcement agencies for loads wider than 17 feet on two- or three-lane roads, wider than 19 feet on four-or-more-lane roads, or higher than 16 feet. That language is permissive ("may require"), not mandatory, so whether law enforcement is involved is decided case by case during permitting, not by crossing a fixed threshold.

The agency is the Nevada Highway Patrol (NHP). There's no separate scheduling channel for NHP escorts; coordination is arranged through the permit process, with NDOT directing the permittee to arrange law enforcement contact when the Department determines it's needed.

One separate NHP touchpoint applies to all escort operations: pilot cars running amber warning lights must hold an amber light permit from the Nevada Highway Patrol, obtained under state vehicle lighting law. That's an equipment-permit issue for the pilot car itself and is not the same as a law-enforcement traffic-control escort.

Civilian pilot car escorts handle the full codified escort matrix, which Nevada structures around lane count rather than interstate designation. On two- and three-lane roads, a load wider than 12 feet requires a front pilot car; over 14 feet wide it needs both front and rear. On four-or-more-lane roads, a load wider than 14 feet needs a rear pilot car; over 16 feet wide it needs both front and rear. During hours of darkness or holiday hours, any load wider than 12 feet requires both front and rear escorts regardless of road type. Height-based escort kicks in above 15'6": the front pilot car must carry a clearance pole at that trigger. Loads longer than 110 feet (or 120 feet with mechanically steered rear axles) require a rear escort. Front overhangs over 25 feet require a front escort; rear overhangs over 25 feet require a rear escort.