Page 162 - The Central Motor Vehicles Rules, 1989

134 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 100
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[98B. Steering Gears for agricultural tractors

98B
(1) The steering gear of agricultural tractor shall be maintained in good and sound
condition, free from back-lash exceeding 30 degrees on the steering wheels. All ball joints
connecting the steering linkage shall be protected by rubber caps and where the
connections are secured with bolts, or pins, the bolts or pins shall be effectively locked.
(2) The turning circle diameter and turning circle clearance, diameter of every
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agricultural tractor shall conform to [IS : 11859-2004], as amended from time to time.
(3) The steering effort requirement of agricultural tractor shall conform to Automo-
tive Industry Standard (AIS) : 042, as amended from time to time, till such time the
corresponding BIS standard is notified.]
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[98C. Steering gear for power tillers

98C
The turning circle diameter and the turning clearance circle diameter of power
tillers coupled to trailers, when measured as per IS:12222:1987, as amended from time
to time, shall not exceed 10 metres.]
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[98D. Steering gears for combine harvester
98D
(1) The turning clearance circle diameter of combine harvester, coupled to the
trailer for header assembly, if any, when measured as per IS:11859-2004, as amended
from time to time, shall not exceed 20 metres, without brake condition.
(2) The steering effort requirement of combine harvester shall conform to AIS:042-
2004, as amended from time to time, till such time the corresponding Bureau of Indian
Standard is notified.]
99. Forward and backward motion
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5
Every [motor vehicle including [construction equipment vehicle, agricultural
99
tractor and combine harvester] other than a motor cycle and three-wheeled invalid
carriages, shall be capable of moving under its own power in the reverse direction also:
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[PROVIDED that power tillers with a riding attachment and power tillers coupled
to trailers shall be capable of moving under its own power in the reverse direction also.]
100. Safety glass
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100
[(1) The windscreen and window glass of every motor vehicle including agricul -
ture tractor fitted with cabin, construction equipment vehicle fitted with cabin and
combine harvester shall be made of safety glass or safety glazing material:
PROVIDED that in L5 category vehicles (three wheelers) and vehicles with hood
and side coves, the window glass may be made of acrylic or plastic transparent sheet.
Explanation : For the purposes of this rule,—
(i) safety glass or safety glazing means the materials confirming to IS 2553 (Part
2) (Revision 1): 2019;
(ii) windscreen and window glass of motor vehicle, the inner surface of which
is at an angle more than thirty degrees to longitudinal axis of the vehicles,
shall be deemed to face to the front.
(2) The safety glass or safety glazing of the windscreen and rear window of every
motor vehicle shall be so manufactured to provide not less than seventy percent visual

1 Inserted by CMV (Amdt.) Rules, 2004 vide GSR 111(E), dt. 10-2-2004, w.e.f. 10-8-2004.
2 Substituted for “IS : 11859-1986” vide GSR 1461(E), dt. 27-11-2017, w.e.f. 27-5-2018.
3 Inserted vide GSR 589(E), dt. 16-9-2005, w.e.f. 16-9-2006.
4 Inserted vide GSR 212(E), dt. 20-3-2015, w.e.f. 1-4-2015.
5 Substituted for "motor vehicle" vide GSR 116(E), dt. 27-2-2002, w.e.f. 27-8-2002.
6 Substituted for "construction equipment vehicle and agricultural tractor" vide GSR 212(E), dt. 20-3-2015,
w.e.f. 1-4-2015.
7 Existing sub-rules (1) to (3B) substituted vide GSR 457(E), dt. 20-7-2020, w.e.f. 1-4-2021.