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## When did 45 foot trailers become legal?
### Answer:
45 foot trailers became legal in the United States in 1982 when Congress passed the Surface Transportation Assistance Act. This act allowed states to permit longer combination vehicles on their highways, which included the use of 45 foot trailers.
### Why were 45 foot trailers not legal before 1982?
Before 1982, there were restrictions on the length of trailers that could be used on highways in the United States. The maximum allowable length for trailers was typically 40 feet. This limitation was in place due to concerns about the impact of larger vehicles on road safety, infrastructure, and the environment.
### How did the legalization of 45 foot trailers impact the transportation industry?
The legalization of 45 foot trailers had a significant impact on the transportation industry. It allowed for greater efficiency in shipping goods as larger trailers could carry more freight, leading to reduced transportation costs. It also helped to alleviate congestion on highways by reducing the number of trucks needed to transport the same amount of goods.
### Are there any limitations on the use of 45 foot trailers?
While 45 foot trailers are legal in the United States, there are still restrictions on their use in certain states and on certain highways. Some states have specific regulations regarding the use of longer trailers, such as limitations on where they can operate or restrictions on certain types of cargo that can be transported.
### How do 45 foot trailers compare to other types of trailers?
45 foot trailers are longer than traditional 40 foot trailers, which allows them to carry more cargo. They are commonly used for transporting goods over long distances, particularly in industries such as shipping, logistics, and retail. Other types of trailers, such as 53 foot trailers, are even larger and can carry even greater amounts of freight, but they may be subject to additional restrictions and regulations.
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