
Wide loads and oversized loads are terms used to describe shipments that exceed the legal limits for highway travel. While the terms are often used interchangeably, there are some key differences between them. Wide loads refer specifically to loads that exceed the maximum legal width limit, which is typically 8.5 feet (2.6 meters). Oversized loads, on the other hand, refer to loads that exceed the maximum legal limits for length, width, height, or weight. These loads require special permits, safety equipment, and are usually only allowed on specific routes pre-approved by the relevant authorities. Understanding what constitutes a wide or oversized load is crucial for legally shipping materials and avoiding penalties.
| Characteristics | Values |
|---|---|
| Legal width limit for highway travel | 8.5 feet (2.6 meters) |
| Maximum height limit | 13.5 to 14.5 feet |
| Maximum length | 53 feet |
| Maximum weight | 80,000 pounds |
| Load banner | Yellow and black banner with "WIDE LOAD" or "OVERSIZE LOAD" in bold letters |
| Flags | 18" square red or orange flag at each "wide" corner of the load |
| Lights | Required at night, in the same spots as the flags |
| Escort vehicles | Required in front of and/or behind the load |
| Pilot car drivers | Permitted to stop traffic to guide the truck driver |
| Permits | Required for each state the load travels through |
| Fees | Range from $15 to over $70, depending on the state and size/weight of the load |
| Restricted travel times | Daylight hours only in many states; restrictions on weekends and holidays |
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What You'll Learn
- Load width: typically, the maximum legal load width is 8.5 feet
- Height and weight: loads that exceed the maximum legal height and weight limits
- Escort vehicles: requirements for pilot or escort vehicles
- Permits: the need for a state-issued permit to travel on highways
- Travel times: restrictions on when wide loads can be transported

Load width: typically, the maximum legal load width is 8.5 feet
Typically, the maximum legal load width for highway travel is 8.5 feet (2.6 metres). This is because the standard width of a highway lane is 12 feet. Any load wider than 8.5 feet is considered a wide load or an oversize load. These loads require special permits and are only allowed on specific routes pre-approved by the relevant state authorities.
Wide loads are transported using specialised equipment, such as flatbed trailers, and require specific safety regulations, including proper signage and lighting. They also have restrictions on load speed and the number of escort vehicles needed. For example, loads greater than 10 feet wide may require escort vehicles both in front of and behind the load. In some states, loads moved during the night may also require escort vehicles.
The specific maximum width limit varies in each state. For example, in Hawaii, the maximum width allowed is 9 feet due to local road planning. In some states, the maximum legal trailer width may be just 8 feet. Once the width of a load exceeds 12 or 14 feet, there may be additional requirements and restrictions, such as the requirement for pilot or escort vehicles and limited permitted travel times and routes.
It is important to note that the terms "wide load" and "oversize load" are often used interchangeably, but there are some key differences. Wide loads specifically refer to loads that exceed the maximum legal width limit, while oversize loads refer to loads that exceed the maximum legal size limits, including width, length, height, and weight.
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Height and weight: loads that exceed the maximum legal height and weight limits
While the terms "wide load" and "oversized load" are often used interchangeably, they refer to two different types of shipments. A wide load specifically refers to a load that exceeds the maximum legal width limit for highway travel, which is typically 8.5 feet (2.6 meters). Any load wider than this will likely require a state-by-state permit to travel on public highways and may be restricted to specific routes pre-approved by the relevant authorities.
On the other hand, an oversized load refers to a shipment that exceeds the legal limits for length, width, height, or weight. This means that a load can be classified as oversized even if it is not particularly wide or tall, but rather because it is extremely heavy. The federal standard for weight is a Gross Vehicle Weight (cargo and truck combined) of 80,000 pounds. While this limit applies to all interstate highways, a truck moving in-state on private roads may have a higher limit if the state regulations are higher than the federal standard.
In terms of height restrictions, there is no federal rule controlling minimum or maximum vehicle or trailer height. However, bridges and overpasses, especially older ones, will have lower height limits. Newer construction along interstate highways typically has a standard design clearance of between 16 to 17 feet, depending on the state. It is crucial for truckers to double-check their route for height minimums to prevent low-clearance accidents.
Permits are required for both wide loads and oversized loads, and these permits will outline the conditions of movement, including the route of travel, safety equipment, and any restricted times or travel. Fees for permits vary depending on the state and the size and weight of the load, ranging from as little as $15 to over $70. Some states offer accounts with reduced fees for carriers with frequent wide loads.
In addition to permits, wide loads and oversized loads may be subject to other restrictions and requirements, such as the use of escort vehicles, restricted travel times, and the need for special safety equipment such as lights, flags, and load banners. These requirements vary widely between states, and even between cities and communities within a state, so it is important for carriers to carefully review the regulations for each state they will be travelling through.
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Escort vehicles: requirements for pilot or escort vehicles
The requirements for pilot or escort vehicles vary depending on the state and the dimensions of the load. Generally, loads wider than 12 feet require at least one pilot or escort vehicle, and loads wider than 14 feet require at least two. For example, Massachusetts requires a pilot or escort vehicle for loads more than 12 feet wide, while Ohio requires one for loads more than 13 feet wide.
In some states, such as Arizona, Colorado, Florida, Georgia, Louisiana, Minnesota, Nevada, New Mexico, New York, Oklahoma, and Virginia, P/EVO (Pilot/Escort Vehicle Operator) certification is required for those operating pilot or escort vehicles. Even in states where it is not required, it is beneficial for P/EVOs to take a Driver Improvement Course to sharpen their driving and safety skills and qualify for lower insurance rates.
Pilot or escort vehicles are required to have a large, appropriate "WIDE LOAD" warning sign mounted on top of the vehicle or on the front and rear of the vehicle, conforming to the requirements of the state. Many states also require warning flags mounted on the escort vehicles, with either two or four flags that are typically 12 or 18 inches square. Escort vehicles may also be required to display placards or signs identifying the pilot or escort company's name, location, and phone number, and company logos are permitted.
The terms "pilot" and "escort" are often used interchangeably, but "escort" can also refer to police vehicles and personnel that are required when cargo is incredibly large or transported through a city. Police escorts are typically required for loads wider than 15 feet. In some cases, both private pilot cars and police escorts may be necessary.
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Permits: the need for a state-issued permit to travel on highways
When transporting a wide load, it is essential to understand the regulations and requirements for travelling on highways. While the specific criteria for a wide load vary across states, any load exceeding 8.5 feet in width is generally considered a wide load or an oversized load. In Hawaii, the maximum width allowed is 9 feet. These loads often require special permits and are typically restricted to specific pre-approved routes.
State-issued permits are crucial for ensuring compliance with legal requirements and maintaining safety on highways. The permits outline the conditions under which wide loads can be transported, including specified routes, safety equipment, and any necessary escort vehicles. The cost of permits varies depending on the state, ranging from $15 to over $70 for the same basic load. Additionally, there may be a processing fee for the application, typically around $15.
The requirements for obtaining a permit depend on factors such as the load's width, height, and weight. Most states require a permit for loads exceeding 8.5 feet in width, while some states set the threshold at 8 feet or 8 feet 6 inches. Loads that surpass certain width limits, such as 12 or 14 feet, may face additional restrictions and requirements, including the need for pilot or escort vehicles and limited travel times and routes.
It is important to note that the regulations and permitting processes differ between wide loads and oversized loads. While wide loads refer specifically to excessive width, oversized loads refer to exceeding the maximum legal limits in width, length, and/or height. Oversized loads may have more flexibility in terms of routes and can be transported on standard trailers and trucks. However, they may also face restrictions on time of travel and require safety measures such as road closures and police escorts.
When transporting wide loads across multiple states, it is crucial to review the regulations and permit requirements for each state. Failure to comply with the conditions of the permit or not having the required permit can result in significant fines. Additionally, some states restrict the movement of wide loads to daylight hours, and there may be further limitations on travel during weekends and legal holidays.
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Travel times: restrictions on when wide loads can be transported
The restrictions on when wide loads can be transported vary depending on the state and even the cities and communities within a state. Many states restrict the movement of oversized loads to daylight hours, although this may only apply to state highways and not interstates. These restrictions may also vary according to the size of the load. For example, loads greater than 10 feet wide may be restricted to daylight hours, while loads no more than 10 feet wide may be allowed to travel at night on interstates and four-lane divided highways. In some cases, wide loads may be required to move at night during periods of least traffic.
When transporting a wide load across multiple states, it is important to review the requirements of each state's permit to ensure compliance with all regulations. Failure to adhere to the conditions of a permit or not having the required permit can result in significant fines. Some states also limit the movement of wide loads on weekends and legal holidays, including individual state holidays. During holiday periods, travel must stop at a designated time, such as noon, on the day before the holiday and not resume until the day after. The objective is to prevent wide loads from travelling during periods of anticipated increased holiday traffic.
The permit issued for a wide load will define the conditions of its movement, including any restricted times for moving the load. Most long-term permits must be renewed annually. Each state designates a department to oversee the issuance of permits and collect fees, which can range from $15 to over $70 depending on the state and the size and weight of the load. Some states allow operators who frequently move wide loads to set up accounts with reduced or eliminated application fees for future permits.
In addition to time restrictions, wide loads may be subject to other requirements such as the need for escort vehicles. For loads that are more than 10 feet wide, many states require two pilot cars: one in front and one behind the load. In some cases, larger wide loads may also require law enforcement escorts, including state police or other qualified security personnel.
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Frequently asked questions
Wide loads specifically refer to loads that exceed the maximum legal width limit, whereas oversized loads refer to loads that exceed the maximum legal limit in terms of width, length, and height.
A wide load is any load that is wider than 8.5 feet (2.6 meters). This is the typical maximum width allowed in all states except Hawaii, where the maximum width is 9 feet.
Wide loads require special permits and are only allowed on specific routes pre-approved by the relevant authorities. They also require different handling techniques and specialised equipment such as flatbed trailers.
Wide loads have restrictions on load speed and the number of escort vehicles needed. Most states require any wide load to have a load banner, which is a yellow and black banner with the words "WIDE LOAD" printed in bold letters, on both the front and back of the freight.
Non-adherence to the conditions of the permit or failure to obtain the required permit can result in significant fines.

























