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A-1 APPENDIX A Heavy Truck Weight and Dimension Limits for Interprovincial Operations in Canada Task Force on Vehicle Weights and Dimensions Policy Heavy Truck Weight and Dimension Limits for Interprovincial Operations in Canada Resulting From The Federal-Provincial-Territorial Memorandum of Understanding on Interprovincial Weights and Dimensions Summary Information April 2008

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A-2 Table of Contents Introduction ................................................................................................................................... A-3 The Federal - Provincial - Territorial Memorandum of Understanding on Interprovincial Weights and Dimensions .......................................................................................................................... A-5 General Conditions .................................................................................................................. A-5 Additional Conditions and Restrictions ................................................................................... A-6 Interpretations and Clarifications ............................................................................................. A-7 Exceptions ................................................................................................................................ A-8 Category 1: Tractor Semitrailer .................................................................................................... A-9 Category 2: A Train Double ......................................................................................................... A-11 Category 3: B Train Double.......................................................................................................... A-13 Category 4: C Train Double.......................................................................................................... A-15 Category 5: Straight Truck............................................................................................................ A-17 Category 6: Truck - Pony Trailer Combination ............................................................................ A-19 Category 7: Truck - Full Trailer Combination.............................................................................. A-21 Category 8: Intercity Bus and Recreational Vehicles ................................................................... A-23 Designated Highway Systems....................................................................................................... A-25 Yukon ....................................................................................................................................... A-25 British Columbia ...................................................................................................................... A-25 Alberta ...................................................................................................................................... A-25 Manitoba .................................................................................................................................. A-25 Ontario ..................................................................................................................................... A-25 Qubec ..................................................................................................................................... A-26 New Brunswick ....................................................................................................................... A-26 Nova Scotia .............................................................................................................................. A-26 Prince Edward Island ............................................................................................................... A-26 Newfoundland and Labrador.................................................................................................... A-26 Saskatchewan ........................................................................................................................... A-27 Northwest Territories ............................................................................................................... A-28

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A-3 Introduction In February 1988, the Council of Ministers Responsible for Transportation and Highway Safety endorsed a Memorandum of Understanding designed to improve uniformity in regulations covering weights and dimensions of four types of commercial vehicles operating between provinces and territories on a nationwide highway system. The original MOU included the following configurations: Category 1: Tractor Semitrailer Category 2: A Train Double Category 3: B Train Double Category 3: C Train Double Since the original agreement was established, five amendments have been prepared and endorsed by the Council of Ministers. Amendment 1: In September 1991 the number of vehicle configurations covered by the national standards agreement was increased from four to eight to include: Category 5: Straight Truck Category 6: Truck - Pony Trailer Category 7: Truck - Full Trailer Category 8: Intercity Bus Amendment 2: In July 1994 changes were made to the dimensional limits applicable to Categories 1 through 4 as follows: the maximum length of semitrailers was increased from 14.65 metres (48 feet) to 16.2 metres (53 feet) the overall length limit applicable to double trailer combinations was increased from 23 metres (75 feet) to 25 metres (82 feet) Amendment 3: In June 1997 amendments to the standards contained in the MOU included the following: Dimension Limits: the box length limit for truck-pony trailer and truck-full trailer configurations was increased to 20 metres. the maximum hitch offset was standardized for all configurations at 1.8 meters. the minimum wheelbase requirement for all semitrailers, pony trailers and full trailers was standardized at 6.25 m. the interaxle spacing between the axle(s) on the lead trailer and the converter dolly of A and C Train Doubles can be less than 3.0 m, but weight limit restrictions apply. the fifth wheel position on the lead trailer of a B Train must not be located more than 0.3 meters behind the center of the last axle on the lead semitrailer. Weight Limits:

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A-4 the steering axle weight limit on straight trucks was increased to 7250 kg. weight limit caps on the second trailer of A and C train double trailer combinations were removed and replaced by the requirement that the weight of the tractor drive axles + the weight of the lead trailer axles must be greater than the weight of the second trailer. Amendment 4: In September 2004 additional amendments were made as follows: A Train Double Trailer Combinations: The box length limit was increased to 20 metres B Train Double Trailer Combinations: A kingpin setback limit of a maximum 2.0 m radius is applied to the second semitrailer. Recreational Vehicles: The Intercity Bus category was amended to include recreational vehicles, thereby allowing them to be up to 14 metres long Amendment 5: In April 2008 changes and additions were made as follows: Use of Wide Base Single Tires: For axles fitted with two single tires, each of which has a width of 445 mm or greater, the weight limits were increased to 7700 kg for Single Axles and 15,400 kg for Tandem Axle Groups. Minimum Track Width for Trailer Axles Fitted with Single Tires: The minimum track width for trailer axles fitted with single tires was reduced to 2.3 m for trailers built in 2007 or earlier (the minimum track width for all axles on trailers built in 2008 or later remains at 2.5 m). Aerodynamic Devices on Rear of Trucks and Trailers: Aerodynamic devices installed at the rear of trucks, trailers and semitrailers were excluded from measurement of overall length, trailer length, semitrailer length, box length and effective rear overhang (within specific dimensional limits outlined in the MOU) Exclusions from Determination of Overall Width: A clarification was added to exclude from measurements of overall width: o auxiliary equipment and/or devices not designed or used to carry cargo which do not extend more than 10 cm beyond each side of the vehicle, and o rear view mirrors which do not extend more than 30 cm beyond each side of the vehicle Implications Under the terms of the Memorandum of Understanding, each of the provinces and territories will permit vehicles which comply with the appropriate weights and dimensions described in the following section to travel on a designated system of highways in their jurisdiction. It should be recognized that each jurisdiction continues to retain authority to allow more liberal weights and dimensions, or different types of vehicle configurations, for trucking operations within their jurisdiction. In addition, for trucking operations which take place between adjacent jurisdictions with compatible weight and dimension regulations which are more liberal than those specified in this document, the local regulations will prevail. For further information on the Memorandum of Understanding, please contact the appropriate authority in each participating jurisdiction.

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A-5 THE FEDERAL - PROVINCIAL - TERRITORIAL MEMORANDUM OF UNDERSTANDING ON INTERPROVINCIAL WEIGHTS AND DIMENSIONS The Provincial and Territorial governments in Canada have authority over the weight and dimension limits which apply to the highways within their boundaries. The Memorandum of Understanding on Interprovincial Weights and Dimensions (MOU) is intended to provide improved uniformity in weight and dimension limits through establishment of minimum and/or maximum thresholds acceptable to all jurisdictions for eight configurations of vehicles commonly used in interprovincial transportation. GENERAL CONDITIONS 1. It has all of the characteristics provided for below for the following eight categories: Category 1: Tractor Semitrailer Category 2: A Train Double Category 3: B Train Double Category 4: C Train Double Category 5: Straight Truck Category 6: Truck - Pony Trailer Category 7: Truck - Full Trailer Category 8: Intercity Bus and Recreational Vehicles 2. Its height, including load, does not exceed 4.15 metres 3. Its width, including load but excluding mirrors, lamps, and load covering or securing devices, does not exceed 2.6 metres 4. Its length, including load, does not exceed: Category 1: Tractor Semitrailer 23 metres Category 2: A Train Double 25 metres Category 3: B Train Double 25 metres Category 4: C Train Double 25 metres Category 5: Straight Truck 12.5 metres Category 6: Truck - Pony Trailer 23 metres Category 7: Truck - Full Trailer 23 metres Category 8: Intercity Bus and Recreational Vehicles 14 metres 5. Its Gross Combination Weight does not exceed: Category 1: Tractor Semitrailer 46 500 kg Category 2: A Train Double 53 500 kg Category 3: B Train Double 62 500 kg Category 4: C Train Double 58 500 kg Category 5: Straight Truck 24 250 kg Category 6: Truck - Pony Trailer 45 250 kg Category 7: Truck - Full Trailer 53 500 kg

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A-6 Category 8: Intercity Bus and Recreational Vehicles 24 250 kg 6. Its axle weight does not exceed the weight limit stipulated for each axle type in its vehicle category, it being understood that the load shared between adjacent axles in a group must not vary by any more than 1000 kg. 7. Its axle weight does not exceed the lesser of the maximum rated capacity of any single component of the axle, suspension or braking system, the rated capacity of the tires, or 10 kg/mm of tire width (with a minimum tire width of 150 mm). 8. Each semitrailer has only one axle group consisting of either a single axle or a tandem or tridem group that will achieve equalized load sharing between axles in the group. This does not necessarily preclude the use of independently suspended axles or axle groups in the tandem or tridem categories, provided load equalization can be demonstrated. 9. Its axle weights and Gross Combination Weight do not exceed the limits stipulated for each axle and vehicle type, recognizing that jurisdictions will not have legislated or published tolerances concerning the enforcement of the local legislation. 10. Its axle weights, when an axle is fitted with two single tires, each of which has a width of 445 mm or greater, do not exceed 7700 kg for Single Axles and 15,400 kg for Tandem Axle Groups. ADDITIONAL CONDITIONS AND RESTRICTIONS The weight limits of several jurisdictions are also subject to seasonal restrictions, primarily during the spring thaw period. As the timing and nature of these restrictions vary by province, carriers should contact provincial authorities directly for specific details. The use of liftable axles is discouraged or prohibited in a number of jurisdictions, primarily in western Canada. The province of British Columbia requires that highway tractors use engines which meet a minimum ratio of gross weight to horsepower of 150 kg/hp. In addition, vehicle combinations with gross weights in excess of 38,000 kg must employ tractors with tandem drive axles.

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A-7 INTERPRETATIONS AND CLARIFICATIONS In July 1994 an additional section was added to the MOU to elaborate on, or clarify, specific provisions of the agreement, based on consensus reached through discussion by the participating jurisdictions. As issues or questions arise in the future, this section is expected to be expanded to include the consensus reached on each issue. As of April 2008, six issues are addressed in this section: 1. Dromedary Boxes on Tractors (July 1994): It is understood that all jurisdictions will permit load to be carried on tractors for vehicles which comply with the provisions applicable to Category 1 - Tractor Semitrailer. 2. Category 3 - B Train Configurations (July 1994): It is understood that the provisions applicable to Category 3 - B Train Double do not preclude the use of a tridem axle configuration on the second semitrailer. 3. All Categories - Vehicles Fitted with Liftable Axles (June 1997): It is understood that vehicles which are fitted with liftable axles will be recognized as meeting the requirements of this Memorandum of Understanding provided that, when the lift axles are raised, all other requirements are met. It is further understood that participating jurisdictions can chose to eliminate any liftable axles from the determination of axle and/or gross vehicle weight limits for a vehicle. 4. All Categories - Aerodynamic Devices Fitted on Rear of Vehicles (April 2008): It is understood that aerodynamic devices installed at the rear of trucks, trailers and semitrailers shall not be included in the measurement of overall length, trailer length, semitrailer length, box length and effective rear overhang, provided: any portion of the device more than 1.9 metres above the ground does not protrude more than 0.61 metres beyond the rear of the vehicle, and any portion of the device within 1.9 metres of the ground does not protrude more than 0.305 metres beyond the rear of the vehicle, and the aerodynamic device is not designed or used to carry cargo. It is further understood that vehicles fitted with aerodynamic devices must also comply with applicable CMVSS standards and provincial/territorial regulations regarding lighting and conspicuity. 5. All Categories Exclusions from Determination of Overall Width (April 2008): It is understood that auxiliary equipment and/or devices not designed or used to carry cargo which do not extend more than 10 cm beyond each side of the vehicle shall be excluded from measurements of overall width. It is further understood that rear view mirrors which do not extend more than 30 cm beyond each side of the vehicle shall be excluded from measurements of overall width.

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A-8 6. Minimum Track Width for Trailer Axles Fitted With Single Tires (April 2008): It is understood that the minimum track width for trailer axles fitted with single tires must be no less than 2.3 m for trailers built in 2007 or earlier. It is further understood that the minimum track width for all axles on trailers built in 2008 or later must be no less than 2.5 m. EXCEPTIONS As of April 2008, three exceptions are noted: 1. Northwest Territories - Weight Limit on Single Tires (April 2008): The weight on a single tire (except on steering axles) cannot exceed 3000 kg. 2. New Brunswick The weight on a single tire (except on steering axles) having a minimum width of 445 mm cannot exceed 3080 kg on highways rated as Class 3 - Gross Vehicle Weights up to 50,000kg and Class 4 - Gross Vehicle Weights up to 43,500 kg. The weight on a single tire (except on steering axles) having a width of less than 445 mm cannot exceed 3000 kg on all New Brunswick highways 3. Newfoundland and Labrador - Weight Limit on Single Tires (April 2008): The weight on a single tire (except on steering axles) cannot exceed 3000 kg on secondary roads within the designated route network.

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A-9 CATEGORY 1: TRACTOR SEMITRAILER Part 1 - Dimension Limits Overall Length - Max 23 m Semitrailer Length - Max 16.2 m Kingpin Setback Effective Rear Overhang (max 2.0 m radius) (max 0.35 x wheelbase) Wheelbase - min 6.25 m/max 12.5 m Interaxle Spacing Interaxle Spacing Wheelbase - max 6.2 m DIMENSION LIMIT Overall Length Maximum 23 m Overall Width Maximum 2.6 m Overall Height Maximum 4.15 m Tractor: Wheelbase Maximum 6.2 m Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Semitrailer Length Maximum 16.2 m Wheelbase Single, Tandem or Tridem Axle Group Minimum 6.25 m/Maximum 12.5 m Kingpin Setback Maximum 2.0 m radius Effective Rear Overhang Maximum 35% of wheelbase Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Tridem Axle Spread Minimum 2.4 m/Maximum 3.7 m Track Width Minimum 2.5 m/Maximum 2.6 m Interaxle Spacings Single Axle to Single, Tandem or Tridem Axle Minimum 3.0 m Tandem Axle to Tandem Axle Minimum 5.0 m Tandem Axle to Tridem Axle Minimum 5.5 m

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A-10 Category 1: Tractor Semitrailer Part 2 - Weight Limits Max 5500 kg Single Axle - Max 9100 kg Single Axle - Max 9100 kg Tandem Axle - Max 17 000 kg Tandem Axle - Max 17 000 kg Tridem Axle - Spread: 2.4 m to < 3.0 m - Max 21 000 kg 3.0 m to < 3.6 m - Max 23 000 kg 3.6 m to 3.7 m - Max 24 000 kg WEIGHT LIMIT Axle Weights: Steering Axle Maximum 5500 kg Single Axle (dual tires) Maximum 9100 kg Tandem Axle: Axle Spread 1.2 m - 1.85 m Maximum 17 000 kg Tridem Axle: Axle Spread 2.4 m - less than 3.0 m Maximum 21 000 kg Axle Spread 3.0 m - less than 3.6 m Maximum 23 000 kg Axle Spread 3.6 m - 3.7 m Maximum 24 000 kg Gross Vehicle Weight Limits Three Axles Maximum 23 700 kg Four Axles Maximum 31 600 kg Five Axles Maximum 39 500 kg Six Axles - with 2.4 to < 3.0 m spread tridem Maximum 43 500 kg with 3.0 m to < 3.6 m spread tridem Maximum 45 500 kg with 3.6 to 3.7 m spread tridem Maximum 46 500 kg

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A-11 CATEGORY 2: A TRAIN DOUBLE Part 1 - Dimension Limits Overall Length - Max 25 m Box Length - Max 18.5 m Kingpin Setback Hitch Offset Max 2.0 m radius Max 1.8 m Wheelbase - Min 6.25 m Wheelbase - Min 6.25 m Interaxle Spacing Interaxle Spacing Dimension Interaxle Spacing Wheelbase "A" Max 6.2 m DIMENSION LIMIT Overall Length Maximum 25 m Overall Width Maximum 2.6 m Overall Height Maximum 4.15 m Box Length Maximum 18.5 m Tractor: Wheelbase Maximum 6.2 m Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Lead Semitrailer Wheelbase Minimum 6.25 m Kingpin Setback Maximum 2.0 m radius Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Hitch Offset Maximum 1.8 m Track Width Minimum 2.5 m/Maximum 2.6 m Second Semitrailer or Full Trailer Wheelbase Minimum 6.25 m Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Track Width Minimum 2.5 m/Maximum 2.6 m Interaxle Spacings Single Axle to Single or Tandem Axle Minimum 3.0 m Tandem Axle to Tandem Axle Minimum 5.0 m Dimension "A" Not controlled (from the centre of last axle on the lead semitrailer to the centre of the first axle on the converter dolly or second trailer)

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A-19 CATEGORY 6: TRUCK - PONY TRAILER COMBINATION Part 1 - Dimension Limits Overall Length - Max 23 m Box Length - Max 20 m Trailer Length - Max 12.5 m Wheelbase Hitch Offset Interaxle Spacing Interaxle Spacing DIMENSION LIMIT Overall Length Maximum 23 m Overall Width Maximum 2.6 m Overall Height Maximum 4.15 m Box Length Maximum 20 m Truck: Length Maximum 12.5 m Wheelbase Not controlled Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Effective Rear Overhang Maximum 4.0 m Hitch Offset Maximum 1.8 m Pony Trailer* Length Maximum 12.5 m Wheelbase Minimum 6.25 m Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Tridem Axle Spread Minimum 2.4 m/Maximum 2.5 m Track Width Minimum 2.5 m/Maximum 2.6 m Effective Rear Overhang Maximum 4.0 m Interaxle Spacings Single Axle to Single, Tandem or Tridem Axle Minimum 3.0 m Tandem Axle to Tandem Axle Minimum 5.0 m Tandem Axle to Tridem Axle Minimum 5.5 m * Limits not applicable to pony trailers with Gross Vehicle Weight Rating of less than 10 000 kg.

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A-20 Category 6: Truck - Pony Trailer Combination Part 2 - Weight Limits Max 7250 kg Single Axle - Max 9100 kg Single Axle - Max 9100 kg Tandem Axle - Max 17,000 kg Tandem Axle - Max 17,000 kg Tridem Axle* - Max 21,000 kg Note: The maximum spread permitted for a tridem axle group on a pony trailer is 2.5 m. WEIGHTS LIMITS Axle Weight Limits: Steering Axle Maximum 7250 kg Single Axle (dual tires) Maximum 9100 kg Tandem Axle: Axle Spread 1.2 m - 1.85 m Maximum 17 000 kg Tridem Axle: Axle Spread 2.4 m - 2.5 m Maximum 21 000 kg Gross Vehicle Weight Limits: Three Axles Maximum 25 450 kg Four Axles Maximum 33 350 kg Five Axles Maximum 41 250 kg Six Axles Maximum 45 250 kg

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A-21 CATEGORY 7: TRUCK - FULL TRAILER COMBINATION Part 1 - Dimension Limits Overall Length - Max 23 m Box Length - Max 20 m Trailer Length - Max 12.5 m Effective Rear Overhang - Max 4.0 m Wheelbase - Min 6.25 m Wheelbase Hitch Offset Interaxle Spacing Interaxle Spacing Interaxle Spacing DIMENSION LIMIT Overall Length Maximum 23 m Overall Width Maximum 2.6 m Overall Height Maximum 4.15 m Box Length Maximum 20 m Truck: Length Maximum 12.5 m Wheelbase Not controlled Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Effective Rear Overhang Maximum 4.0 m Hitch Offset Maximum 1.8 m Full Trailer Length Maximum 12.5 m Wheelbase Minimum 6.25 m Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Track Width Minimum 2.5 m/Maximum 2.6 m Converter Dolly The use of a double drawbar or C Dolly is not permitted on this combination Interaxle Spacings Single Axle to Single or Tandem Axle Minimum 3.0 m Tandem Axle to Tandem Axle Minimum 5.0 m

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A-22 Category 7: Truck - Full Trailer Combination Part 2 - Weight Limits Max 7250 kg Single Axle - Max 9100 kg Single Axle - Max 9100 kg Single Axle - Max 9100 kg Tandem Axle - Max 17, 000 kg Tandem Axle - Max 17, 000 kg Tandem Axle - Max 17, 000 kg Weight Restriction 1 WEIGHT LIMIT Axle Weight Limits: Steering Axle Maximum 7250 kg Single Axle (dual tires) Maximum 9100 kg Tandem Axle: Axle Spread 1.2 m - 1.85 m Maximum 17 000 kg Weight Restriction 1: Sum of Axle Weights of Full Trailer 4 Axle Truck-Trailer Combination Maximum 17 000 kg 5 Axle Truck-Trailer Combination Maximum 17 000 kg 6 Axle Truck-Trailer Combination Maximum 24 000 kg 7 Axle Truck-Trailer Combination Maximum 31 000 kg Gross Vehicle Weight Limits: Four Axles Maximum 33 350 kg Five Axles Maximum 41 250 kg Six Axles Maximum 48 250 kg Seven Axles Maximum 53 500 kg

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A-23 CATEGORY 8: INTERCITY BUS AND RECREATIONAL VEHICLES Part 1 - Dimension Limits Overall Length (max 14.0 m) Interaxle Spacing Effective Rear Overhang (max 4.0m) DIMENSION LIMIT Overall Length Maximum 14.0 m Overall Width Maximum 2.6 m Overall Height Maximum 4.15 m Wheelbase Not controlled Tandem Axle Spread Minimum 1.2 m/Maximum 1.85 m Effective Rear Overhang Maximum 4.0 m Axle Requirements: Overall length 12.5 m or less Not controlled Overall length greater than 12.5 m Minimum 3 axles

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A-24 Category 8: Intercity Bus and Recreational Vehicles Part 2 - Weight Limits Max 7250 kg Single Axle (single tires) - Max 6067 kg Single Axle (dual tires) - Max 9100 kg Tandem Axle - Max 17000 kg WEIGHT LIMIT Axle Weights: Steering Axle Maximum 7250 kg Single Axle (dual tires) Maximum 9100 kg* Single Axle (single tires) Maximum 6067 kg* Tandem Axle Maximum 17 000 kg* Gross Vehicle Weight Limits: Two axles Maximum 16 350 kg Three axles (8 tires) Maximum 20 900 kg Three axles (10 tires) Maximum 24 250 kg Note (*) - When there is more than one axle at the rear of the vehicle, the load carried by the group must be distributed between axles in a ratio corresponding to the number of tires on each axle.

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A-25 DESIGNATED HIGHWAY SYSTEMS YUKON Yukon's designated highway system includes: Highway 1, Alaska Highway Highway 2, Klondike Highway Highway 3, Haines Road Highway 4, Robert Campbell Highway Highway 5, Dempster Highway Highway 7, Atlin Road Highway 8, Tagish Road Km 0-2 only Highway 9, Top of the World Highway Highway 11, Silver Trail Highway 15, Mitchell Road Highway 37, Stewart Cassiar Highway BRITISH COLUMBIA British Columbia's designated highway system includes: a. highways in unorganized territory, and b. arterial highways as designated by authority of Section 45 of the Transportation Act. The Motor Vehicle Act and Commercial Transport Act defines highway as: "highway includes every highway within the meaning of the Highway Act, and every road, street, lane or right of way designed for or used by the general public for the passages of vehicles, and every private place or passageway to which the public, for the purpose of parking or servicing of vehicles, has access or is invited." ALBERTA Alberta's designated highway system includes numbered highways from 1 to 99 and 500 to 999. MANITOBA Manitoba's designated highway system includes routes classified as "RTAC Routes" and RTAC routes designated under permit. ONTARIO Ontario's designated highway system includes all of the King's Highways but excludes secondary roads.

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A-26 QUBEC Qubec's designated highway system includes all public highways but excludes bridges with limited capacity and certain roads which have a limited Gross Vehicle Weight of 59,000 kg. NEW BRUNSWICK: New Brunswick's designated highway system includes all public highways. However there are four classes of highways within this system, with Gross Vehicle Weight limits as follows: Class 1 - Gross Vehicle Weights up to 62,500 kg Class 2 - Gross Vehicle Weights up to 56,500 kg Class 3 - Gross Vehicle Weights up to 50,000 kg Class 4 - Gross Vehicle Weights up to 43,500 kg The overall length limit is 25 meters on all classes of highways. NOVA SCOTIA Nova Scotia's designated highway system includes: Primary Highway System: Available to all tractor semitrailer and B Train double trailer combinations. Secondary Highway System: Restricted to vehicles with a Gross Vehicle Weight of 41,500 kg or less. B Train Double trailer combination Network: Subject to special designation; includes the primary highway system plus additional routes identified from within the secondary network. Carriers may request access to sections of the secondary highway system and approval may be granted if traffic and bridge capacity criteria are met. PRINCE EDWARD ISLAND Prince Edward Island's designated highway system includes: all public highways for tractor semitrailer configurations all highways with paved shoulders for A, B and C Train double trailer combinations NEWFOUNDLAND AND LABRADOR Newfoundland and Labrador's designated highway system includes all primary and secondary roads, except those that are otherwise posted.

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A-27 SASKATCHEWAN

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A-28 NORTHWEST TERRITORIES The Northwest Territories' designated highway system includes: arterial class, collector class and local classes of roads and highways in accordance with the NWT Public Highway Act. A summary of the system and map are included. The system does have seasonal restrictions and limited capacity on some routes. HIGHWAY (NAME/No.) RESTRICTIONS/NOTES CLASS Mackenzie Highway No.1 km 0 to km 687 Seasonal Weight restrictions (75%) in effect on ARTERIAL Hay River Highway No. 2 km 0 to 48.6 selected Highways (or Highway sections) as required. Yellowknife Highway No. 3 km 0 to km 338.8 Ferry Restrictions (seasonal) due to weight, water Yellowknife Highway No. 3 Winter Detour Road levels and ice conditions and must be followed. 12.5 km Winter /Ice Road weight restrictions apply (seasonal) Fort Smith Highway No. 5 km 0 to km 266 and must be followed. Liard Highway No. 7 km 0 to km 254.1 Enhanced Visibility Highways include only the Hwy Dempster Highway No. 8 km 0 to km 272.5 1 and 3 Route from the Alberta border to Yellowknife and Hwy 2 [map attached] Call ahead to the permit issuing office for specific details. Ingraham Trail Highway No. 4 km 0 to km 69.2 Seasonal Weight restrictions (75%) in effect on Fort Resolution Highway No. 6 km 0 to km 90.0 selected Highways (or Highway sections) as required. Dettah Road km 0 to km 11.3 Winter /Ice Road weight restrictions apply (seasonal) COLLECTOR Dettah Ice Road 6.3 km and must be followed. Aklavik Ice Road 86 km Call ahead to permit issuing office for specific details. Colville Lake Winter Road 165 km Deline Ice Road 105.3 km Inuvik-Tuktoyaktuk Ice Road 194 km Mackenzie Valley Winter Road 486.4 km Nahanni Butte Winter Road 22.3 km Trout Lake Winter Road 126 km Whati Winter Road 105 km Gameti Ice Road 138 km Various Community Access Roads [map attached] LOCAL Kakisa Access Road 12.9 km As per the NWT Public Highways Act Salt River Access Road 15.5 km Vee Lake Road 5.1 km Various Local Roads [map attached]

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A-29