Sec. 7. A motor vehicle or combination of vehicles, at all times and under all conditions of loading, must, upon application of the service (foot) brake, be capable of decelerating and developing a braking force equivalent to the deceleration according to the minimum requirements set forth in this section and must be capable of stopping within the distances set forth in the following table:
Equivalent
braking
force
Deceleration
in percentage
Stopping
in feet per
of vehicle
distance
second per
or combination
in feet
second
weight
Passenger
vehicles, not
including buses
25
17
53.0%
Single-unit vehicles
with a
manufacturer's
gross vehicle
weight rating of
less than 10,000
pounds
30
14
43.5%
Single-unit, 2-axle
vehicles with a
manufacturer's
gross vehicle
weight rating of
10,000 or more
pounds
40
14
43.5%
All other vehicles
and combinations
with a
manufacturer's
gross vehicle
weight rating of
10,000 or more
pounds
50
14
43.5%