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U.S. TS&W provisions in addition to the ISTEA freeze

Table 2-4-a presents selected aspects of the de facto TS&W provisions governing regular operations on highways in the five States on the western border. Regular operation is defined by WASHTO as “the movement over highways of motor vehicles with dimensions and weights specified by State codes”. These are a mixture of Federal and State laws and regulations. They are de facto in that they represent the regulatory limits within which trucks can and regularly do operate legally by simply registering the vehicle or obtaining necessary permits “across-the- counter,” usually subject to some fee. Some trucks, some of the time, operate beyond these de facto limits--either illegally, or under a special permit. There are other regulatory details over and above those shown in Table 2-4-a which govern and complicate trucking operations moving across the border.

Canadian TS&W provisions

Table 2-4-b presents selected aspects of the de facto TS&W provisions governing regular operations on major highways in the five Provinces on the western border. These are provincial laws and regulations. There is no Federal TS&W law in Canada.

Figure 2-4 shows the GVW limits governing the highways of interest in this case study.

2.4.2 Western Border State Regulation Details

This section presents details about TS&W regulations in the five western border States. They are necessary to understand how the regulations work to affect actual trucking operations in each State.

Washington [5]

As of 1995, all IS, NN and State highways have a specified GVW limit of 105,500 pounds. This was also the practical GVW limit in 1993 when registrations were sold to a maximum of 80,000 pounds, and then the permit office issued “across the counter” additional weight allowance up to 105,500 pounds, for a fee. The Washington law as of 1995 incorporates this extra permit allowance into the registration fee, and now a registrant receives the full 105,500 pounds GVW at the licensing office with no permit being required or issued. This registration allows operations on Interstate highways.

The limits specified by the ISTEA freeze for tractor twin-trailer combinations are 105,500 pounds GVW on Interstate highways and a box length (distance from the front of the first cargo unit to the back of the last unit) of 68 feet on NN highways. Washington does not allow triple-trailer combinations.

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