1．Overall Dimensions

　　1.1 Length 10,500< L <12,000 mm
　　1.2 Width <2500 mm
　　1.3 Height <3500 mm (including H2 tank module)
　　　　<3000 mm (without H2 tank module)
　　1.4 Ground clearance >150 mm
　　1.5 Ramp angle >
　　1.6 Rear overhang angle >
　　1.7 Tread, wheelbase and others (To be determined after discussing with potential suppliers)

　　2．Weight

　　2.1 Gross weight <18000kg
　　2.2 Curb weight, Distributing weight between front and rear axles (To be determined)

　　3 Performance

　　3.1 Maximum speed > 65 Km/h
　　3.2 Maximum gradeability > 12% (speed 10 >km/h, distance >500 m)
　　3.3 Acceleration time (0-50 Km/h) <20 s (Target: 16 s)
　　3.4 Range per fueling 300 Km/day, per refueling
　　3.5 Limited operating distance (after fuel cell failure) about 200 m
　　　　(Bus could leave from the lane to safety area)
　　3.6 Fuel economy better than equivalent conventional diesel engine bus (%TBD)

　　4． Operation Environment Condition

　　4.1 Temperature range -20-42℃ (available grid power in parking lot)
　　4.2 Altitude less than 100 m
　　4.3 Maximum humidity 98.5% Minimum humidity 3～5%(Beijing area)
　　4.4 Sand storm (Beijing area, to be discussed)

　　5． Chassis

　　5.1 Low floor Chassis
　　5.2 Steering wheel in left side
　　5.3 Powered steering
　　5.4 Braking performance conformed to international or related domestic regulation
　　5.5 Braking regeneration
　　5.6 Suspension type (TBD)

　　6． Body

　　6.1 Two Gates for passengers
　　6.2 Air-conditioning (Air-conditioning is on during idle and parking in short time)
　　6.3 Warming during low temperature
　　6.4 Fresh air cycle in compartment
　　6.5 Seat number, standing passenger number, seat layout (to be determined)

　　7． Noise (at constant speed 50 km/h)

　　7.1 Inside compartment <70 dB(A)
　　7.2 Outside vehicle <80dB(A)
　　7.3 Noise during acceleration (TBD)

　　8． Fuel cell power system

　　8.1 Proton exchange membrane fuel cell, (hydrogen-air )
　　8.2 Hydrogen tank pressure <35 MPa
　　8.3 The interface and communication protocol of hydrogen fueling system on bus and dispenser accords 　　with international popular (CaFCP ?) agreement.

　　9． Data acquisition

　　The bus management system should provide the interface and output for outside data collection system, in order to accounting and analyzing the statistic operation data and failure of vehicle and components

　　10. Reliability and durability

　　10.1 Ensure the durability of fuel cell system >4000 hours
　　10.2 Reliability of fuel cell (to be determined)
　　10.3 Reliability and durability of hybrid assistant power system (battery or ultra capacitor) (to be 　determined) (if take hybrid configuration)
　　10.4 Reliability and durability of electric motor, controller, chassis, body and others accessories (to be determined)

　　11． Safety (conform to popular international or domestic regulation)

　　11.1 Protection for driver and passengers
　　11.2 Hydrogen system
　　11.3 High pressure tank
　　11.4 High voltage electricity
　　11.5 EMC
　　11.6 Preventing fire
　　11.7 Battery pack system

　　12 Provide manual,

　　Detailed explanation of bus, power system and related accessories, information of detect, adjust, maintenance and repair, special tools, and related necessary spare parts

　　13 Training

　　Operational drivers and maintaining technicians, engineers, and management cadre.

　　14 Warranty