Draft Details
- School buses (New Edition)
- CSA D250:22
- Legal Notice for Draft Standards
- Technical Committee on School Buses
- Preface
- + 1 Scope
- 1.1 Inclusions
- 1.2 Application
- 1.3 Terminology
- 1.4 Units of measurement
- 2 Reference publications
- 3 Definitions
- + 4 General requirements
- 4.1 Currency of compliance
- 4.2 Relationship with federal regulations
- 4.3 Seating positions
- 4.4 New technology and materials
- 4.5 Mounting of equipment supplied with the veh...
- + 4.6 Compliance label
- 4.6.1 Requirements
- 4.6.2 Indication of fuel or energy storage type...
- 4.6.3 Application
- 4.6.4 Visibility and location
- + 5 Chassis requirements
- 5.1 Batteries
- + 5.2 Brakes
- 5.2.1 Brake drum and rotor
- 5.2.2 Brake lines and booster lines
- 5.2.3 Brake systems
- + 5.3 Front bumper
- 5.3.1 Requirements
- 5.3.2 Design and placement
- 5.3.3 Strength
- + 5.4 Colour
- + 5.4.1 Chassis, wheels, and grille
- 5.4.1.1 Front bumper colour
- 5.4.1.2 Colour options for wheels, rims, and gr...
- 5.4.1.3 Alternative fuel system component appea...
- 5.4.2 Hood
- 5.5 Drive shaft
- + 5.6 Engine exhaust system
- + 5.6.1 General
- 5.6.1.1 Exhaust system location and attachment
- 5.6.1.2 Exhaust system clearance and heat prote...
- 5.6.2 Type A buses
- + 5.6.3 Type B, C, D and E buses
- 5.6.3.1 Requirements
- 5.6.3.2 Tailpipe construction requirements
- 5.6.3.3 Engine exhaust system requirements
- 5.7 Front fenders
- + 5.8 Frame
- 5.8.1 Design and strength requirements
- 5.8.2 Frame side member extension
- 5.8.3 Holes
- 5.8.4 Frame side member limitations
- 5.8.5 Modification restrictions for Type E buse...
- + 5.9 Fuel system
- 5.9.1 General
- 5.9.2 Type C buses
- 5.9.3 Fuel fill hose assembly
- + 5.10 Alternator
- 5.10.1 Requirements for Type A and B
- 5.10.2 Heavy-duty
- 5.10.3 Electrical power considerations
- 5.11 Gross vehicle weight
- 5.12 Horn
- + 5.13 Instruments and instrument panel
- 5.13.1 Instruments, gauges, and indicators
- 5.13.2 Air system pressure gauge
- 5.14 Power and gradability
- 5.15 Shock absorbers
- + 5.16 Steering gear and linkage
- 5.16.1 Steering apparatus modifications
- 5.16.2 Clearance requirements
- + 5.17 Tires and wheels
- 5.17.1 Size
- 5.17.2 Spare tire
- 5.17.3 Dual rear wheels
- + 5.18 Turning radius
- 5.18.1 Requirements
- 5.18.2 Additional Requirements
- + 6 Body requirements
- + 6.1 Aisles
- 6.1.1 Width
- 6.1.2 Type D requirements
- + 6.2 Bus sizes
- 6.2.1 Length
- 6.2.2 Outside body width
- + 6.3 Rear bumper
- 6.3.1 Requirements
- 6.3.2 Additional requirements
- + 6.4 Colour
- 6.4.1 Requirements
- 6.4.2 Lettering and graphics requirements
- 6.4.3 Rear bumper colour and retroreflective ma...
- 6.4.4 Outside bidy trim requirements
- 6.4.5 Service door and side window frame requir...
- + 6.5 Retroreflective marking
- 6.5.1 Rear
- 6.5.2 Sides
- + 6.5.3 Material specifications
- 6.5.3.1 Material specifications
- 6.5.3.2 Colours
- 6.5.3.3 Sheeting photometric requirements
- + 6.6 Construction of body
- + 6.6.1 General
- 6.6.1.1 Sealing of openings between chassis and...
- 6.6.1.2 Floor overlay requirements
- 6.6.1.3 Plywood material requirements
- 6.6.1.4 Aisle requirements
- + 6.6.2 Type A2, B, C, D and E buses
- 6.6.2.1 Construction requirements for bus bodie...
- 6.6.2.2 Floor construction requirements
- 6.6.2.3 Metal treatment for bus body constructi...
- 6.6.2.4 Preparation of metal parts for painting...
- 6.6.2.5 Surface and connection considerations
- 6.6.2.6 Material durability and salt spray test...
- + 6.7 Defroster system
- 6.7.1 Capacity
- 6.7.2 Performance requirements
- + 6.8 Service door
- + 6.8.1 General
- 6.8.1.1 Requirements
- 6.8.1.2 Location
- 6.8.1.3 Type
- 6.8.1.4 Vertical closing edges
- 6.8.1.5 Service door openings
- 6.8.1.6 Security locks
- 6.8.1.7 Separate entrance doors
- + 6.8.2 Service door emergency release
- 6.8.2.1 Manual emergency release
- 6.8.2.2 Exterior emergency release mechanism wi...
- 6.8.2.3 Markings
- 6.8.3 Type A buses
- + 6.8.4 Type B, C, D and E buses
- 6.8.4.1 Requirements
- 6.8.4.2 Horizontal opening
- 6.8.4.3 Glazing in door panels
- + 6.8.5 Handrail
- 6.8.5.1 Requirements for passenger side
- 6.8.5.2 Requirements for dashboard side
- + 6.9 Emergency exits
- + 6.9.1 General
- 6.9.1.1 Requirements
- 6.9.1.2 Design requirements
- 6.9.1.3 Operation and locking mechanism
- + 6.9.2 Emergency doors
- 6.9.2.1 Swing limitation
- 6.9.2.2 Requirements
- 6.9.2.3 Upper safety glazing material
- 6.9.2.4 Lower safety glazing material
- 6.9.2.5 Padding
- 6.9.2.6 Obstruction prevention
- 6.9.2.7 Aisle dimensions for emergency exit acc...
- 6.9.2.8 Locking mechanism
- + 6.9.3 Roof hatches
- 6.9.3.1 Requirements
- 6.9.3.2 Opening requirements
- 6.9.4 Rear windows
- + 6.9.5 Side windows
- 6.9.5.1 General
- 6.9.5.2 Type A2, B, C, D and E buses
- 6.9.5.2.1 Emergency exit side windows
- 6.9.5.2.2 Capacity considerations
- + 6.10 Emergency equipment
- 6.10.1 General
- 6.10.2 Advanced warning devices
- + 6.11 Fire extinguisher
- 6.11.1 Type
- 6.11.2 Operating mechanism
- 6.11.3 Pressure gauge
- 6.11.4 Mounting
- + 6.12 First aid kit
- 6.12.1 Requirements
- 6.12.2 Location
- + 6.13 Floor covering
- 6.13.1 Thickness
- 6.13.2 Slip resistance
- 6.13.3 Floor covering requirements
- + 6.14 Heater system
- 6.14.1 Requirements
- 6.14.2 Supplemental heating
- + 6.15 Identification
- 6.15.1 Requirements
- 6.15.2 Rear bus warning requirements
- 6.15.3 Fuel type identification
- + 6.16 Inside height
- 6.16.1 Type A1 bus
- 6.16.2 Type A2, B, C, D and E buses
- + 6.17 Insulation
- 6.17.1 Sound, vibration, and heat reduction
- 6.17.2 Insulating materials and performance req...
- + 6.18 Interior
- 6.18.1 Interior safety requirements
- 6.18.2 Overhead luggage racks
- 6.18.3 Inner lining
- 6.18.4 Means of securement for cleaning equipme...
- 6.18.5 Waste receptacles
- + 6.19 Lamps, reflectors, and signals
- + 6.19.1 Turn signals and stop lamps
- 6.19.1.1 Rear turn-signal lamp requirements
- 6.19.1.2 Stop lamps installation requirements
- 6.19.1.3 Turn-signal lamp requirements
- + 6.19.2 Alternating flashing warning lamps
- 6.19.2.1 Advanced warning system requirements
- 6.19.2.2 Installation of warning lamps
- 6.19.2.3 Sequential system operation and contro...
- 6.19.2.4 Warning light system controls
- 6.19.2.5 Pilot lamp system for driver alerts
- 6.19.2.6 Warning lamp surround requirements
- 6.19.3 Floor-level side marker lamps
- 6.19.4 Interior lamps
- 6.19.5 Exterior lamps
- 6.19.6 Strobe lamp
- 6.19.7 Exit lamp(s)
- + 6.19.8 Exterior lamps for emergency exits
- 6.19.8.1 Type A1, A2, B, C, D and E buses with ...
- 6.19.8.2 Type D bus with rear emergency window
- 6.19.8.3 Side emergency door exits
- 6.19.8.4 Continuous power to backup and landing...
- 6.19.9 LED Lights
- 6.20 Locked compartment
- 6.21 Operator’s manual
- + 6.22 Mirrors
- + 6.22.1 General
- 6.22.1.1 Requirements
- 6.22.1.2 Mirror heating
- 6.22.1.3 Outside rear-view mirror systems
- + 6.22.2 Interior rear-view mirrors
- 6.22.2.1 General
- 6.22.2.2 Type A1 and A2 buses
- 6.22.2.3 Type B, C, D and E buses
- + 6.23 Body mounting
- 6.23.1 Chassis frame and body attachment
- 6.23.2 Body front attachment and sealing
- + 6.24 Noise suppression and exit lamp(s) disable...
- 6.24.1 Driver accessible noise control switch
- 6.24.2 Noise suppression switch identification
- 6.24.3 Switch operation and public address syst...
- 6.24.4 Speaker placement restrictions
- + 6.25 Rub rails
- 6.25.1 Installation requirements
- 6.25.2 Exemptions
- 6.25.3 Attachment
- 6.25.4 Specifications
- 6.25.5 Application
- 6.25.6 Width
- + 6.26 Seat belt for driver
- 6.26.1 Requirements
- 6.26.2 Seat belt cutter
- + 6.27 Seating
- 6.27.1 General
- 6.27.2 Covering material
- + 6.27.3 Type B, C, D and E buses
- 6.27.3.1 Seating requirements
- 6.27.3.2 Driver’s seat adjustment
- 6.27.3.3 Driver’s seat mounting
- + 6.28 Steps
- + 6.28.1 Height
- 6.28.1.1 Service doorstep
- 6.28.1.2 Stepwell requirements
- + 6.28.2 Additional requirements for steps in Typ...
- 6.28.2.1 Step requirements
- 6.28.2.2 Enclosure
- 6.28.2.3 Protrusion
- 6.28.2.4 Floor and step covering requirements
- 6.28.2.5 Stepwell illumination
- + 6.29 Stirrup steps (Type C D and E buses)
- 6.29.1 Requirements
- 6.29.2 Accessibility for cleaning windshield an...
- 6.29.3 Design requirements
- + 6.30 School bus stop arm
- 6.30.1 Requirements
- 6.30.2 Camera warning label
- 6.31.1 Requirements
- 6.31.2 Activation and Deactivation
- 6.31.3 Extension requirements
- 6.31.4 Operation
- 6.32 Sun shield (Type B, C, D and E buses)
- + 6.33 Undercoating
- 6.33.1 Rustproofing requirements
- 6.33.2 Test panels
- 6.33.3 Undercoating compound
- 6.33.4 Undercoating materials
- + 6.34 Ventilation
- 6.34.1 Requirements
- 6.34.2 Exhaust ventilation
- 6.34.3 Circulation fans for windshield air supp...
- 6.34.4 Circulation fan location
- + 6.35 Wheelhousing
- + 6.35.1 General
- 6.35.1.1 Wheelhouse openings
- 6.35.1.2 Wheelhouse construction
- 6.35.1.3 Raised wheelhousing
- 6.35.1.4 Inside height
- 6.35.2 Type A2, B, C, D and E buses
- + 6.36 Windshield and windows
- + 6.36.1 General
- 6.36.1.1 Requirements
- 6.36.1.2 Passenger compartment side windows
- 6.36.1.3 Driver's window specifications
- 6.36.2 Window dimensions and glazing options
- + 6.37 Wiring
- 6.37.1 General
- 6.37.2 Circuits
- 6.37.3 Insulation and protection
- 6.37.4 Fastening and joining
- 6.38 Side intrusion
- + 6.39 Perimeter visibility systems
- 6.39.1 Requirements
- 6.39.2 Monitor location
- 6.39.3 Power supply
- 6.39.4 Temperature range
- 6.39.5 Camera and camera lens
- 6.39.6 Triggers
- 6.39.7 Driver toggle
- 6.39.8 Backing camera
- 6.39.9 Recording capability
- + 7 Accessible school buses
- 7.1 General
- 7.2 International symbol of access
- + 7.3 Mobility aid entrance
- + 7.3.1 Location
- 7.3.1.1 Right side
- 7.3.1.2 Service door
- 7.3.2 Width and height
- 7.3.3 Automated illumination
- + 7.4 Emergency exit door
- 7.4.1 In reference to mobility aid entrance
- 7.4.2 Width
- 7.5 Aisle width
- + 7.6 Mobility aids
- + 7.6.1 Space requirements
- 7.6.1.1 Floor space
- 7.6.1.2 Fixed vehicle structures
- + 7.6.2 Securement
- 7.6.2.1 Securement devices
- 7.6.2.2 Securement anchorage points
- + 7.6.3 Mobility aid occupant restraint
- 7.6.3.1 Seat belts
- 7.6.3.2 Occupant restraint anchorage points
- 7.6.4 Simultaneous loading
- 7.7 Lifts
- + 7.8 Caution labels for entrances and lifts
- 7.8.1 Caution label for the mobility aid entran...
- 7.8.2 Caution label for the lift
- 7.8.3 Appearance
- 7.9 Seating for ambulatory passengers
- + 8 Multifunction school activity buses
- 8.1 General
- 8.2 Colour
- 8.3 Retroreflective marking
- 8.4 Identification
- 8.5 Luggage racks
- 8.6 Alternating flashing warning lamps
- 8.7 Strobe lamps
- 8.8 Rub rails
- 8.9 School bus stop arm
- 8.10 Pedestrian-student safety crossing arm
- 8.11 Compliance label
- + 9 Electric vehicles (EV)
- + 9.1 General
- 9.1.1 Requirements
- 9.1.2 EV Identification Label
- 9.2 EV exemptions
- 9.3 Acoustic vehicle alerting system
- 9.4 Regenerative braking
- + 9.5 Electrical safety
- 9.5.1 Normal vehicle operations
- 9.5.2 EV systems protection
- 9.5.3 EV systems shutdown protection
- + 9.5.4 Battery Compartment
- 9.5.4.1 Identification
- 9.5.4.2 Label visibility and placement
- + 9.6 Low voltage DC power supply
- 9.6.1 General
- 9.6.2 Power supply device
- Table 1
- Table 2
- Table 3
- Figure 1
- Figure 2
- Figure 3
- Figure 4
- Figure 5
- Figure 6
- Figure 7 Camera Warning Label
- Figure 8
- + Annex A (normative)
- A.1 Test conditions
- A.2 Side rear-view mirrors
- + A.3 Crossover mirrors
- A.3.1 Field of vision requirements for system b...
- A.3.2 System b mirror installation requirements...
- A.3.3 Angular size requirements for reflected i...
- A.3.4 System b mirror image position
- Figure A.1
- Figure A.2
- + Annex B (normative)
- B.1 General
- Table B.1
- + Annex C (normative)
- C.1 Test conditions
- C.2 Roof hatch force application and movement c...
- Figure C.1
- + Annex D (informative)
- D.1 General
- Table D.1
- Annex E (informative)
1 Scope
1.1 Inclusions
This Standard specifies the chassis and body requirements and safety equipment requirements for school buses. It is a manufacturing standard intended to apply to original equipment supplied by the bus manufacturer.
Note: The main purpose of this Standard is to provide the safest possible vehicle for students using school buses. It needs to be stressed, however, that standards are not substitutes for thorough, ongoing, and comprehensive safety training of students and drivers.
1.2 Application
This Standard applies to the following types of vehicles:
a) Type A1, A2, B, C, and D school buses;
b) Type A1, A2, B, C, and D accessible school buses; and
c) multifunction school activity buses (MFSABs).
Note: It is intended that this Standard will apply to those vehicles manufactured on and after November 1, 2022. It is anticipated that the authority having jurisdiction in each Province or Territory will apply this Standard to vehicles manufactured on and after that date.
1.3 Terminology
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
1.4 Units of measurement
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
You may comment on any section of this document by clicking the “Submit Comment” link at the bottom of the relevant section.