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26 documents for the trucking industry." This agreement covers ther improve the program. This group is also considering single trip permits for nondivisible loads. The member states adopting the WASHTO envelope vehicle so that the same ve- currently participating in the program are Alabama, Arkansas, hicle can be permitted in both regions. Note also that the group Florida, Georgia, Kentucky, Louisiana, Mississippi, Missouri, is working on other issues that can benefit the trucking indus- Ohio, Oklahoma, North Carolina, South Carolina, Virginia, try, such as a common envelope permit vehicle for both Tennessee, Texas, and West Virginia. The permit vehicle is SASHTO and WASHTO states, uniform escort certification, required to be within the so-called "envelope vehicle," which uniform hours of movement for permit loads, and online per- is defined as follows: length 100 ft (51 ft for outer axle mitting (R. Braden, personal communication, 2005). measurement), height 14 ft, width 14 ft, GVW 120,000 lb, steering axle weight 12,000 lb, single axle weight 20,000 lb, tandem axle weight 40,000 lb, and OTHER axle group weight (three or more axles) 60,000 lb. One permit is valid for traveling in all participating states. Thus, The questionnaire used in this study also solicited additional multiple permits from different states will not be needed for information and comments that the state-level agencies might an interstate trip. have on the subject. Tables C5-1A and C5-1B cite the com- ments received for the United States and Canada, respectively. Representatives from these participating states meet twice The required follow-ups for more detailed information have each year to get feedback from the states and industry to fur- been done and the results have been included in this report.