اﻟﻌﺮﺑﻴﺔ  اﻟﺨﻠﻴﺞ  ﻟﺪول اﻟﺘﻌﺎون  ﻣﺠﻠﺲ  ﻟﺪول اﻟﺘﻘﻴﻴﺲ  هﻴﺌﺔ  
GCC STANDARDIZATION ORGANIZATION (GSO) 
 
 
 
  
ﻣﺸﺮوع:  ﻧﻬﺎﺋﻲ   
 
  
 
GSO/02/FDS /ECE 73: 2009 
 
 
 
 
  
 
   
 
 
إﻋﺪاد 
 ﻟﻘﻄﺎع اﻟﺨﻠﻴﺠﻴﺔ  اﻟﻔﺮﻋﻴﺔ  اﻟﻔﻨﻴﺔ اﻟﻠﺠﻨﺔ   واﻹﻃﺎرات  اﻟﻤﺮآﺒﺎت  ﻣﻮاﺻﻔﺎت  
 
 
 
 
        ﻟﻤﻮاﺻ  ﻣﺸ  اﻟﻮﺛﻴﻘ  هﺬﻩ                     ﻓﺈﻧﻬ ﻟ ﺑﺸ  واﻟﻤﻠﺤﻮﻇ  اﻟ ﻹﺑ ﺗﻮزﻳﻌﻬ  ﺗ ﺧﻠﻴﺠﻴ  ﻗﻴﺎﺳ
                          ﻣﺠﻠ  ﻣ اﻋﺘﻤﺎده  ﺑﻌ إﻻ ﺧﻠﻴﺠﻴ  ﻗﻴﺎﺳ  آﻤﻮاﺻ  إﻟﻴﻬ اﻟﺮﺟ  ﻳﺠ وﻻ واﻟﺘﺒ  ﻟﻠﺘﻐﻴﻴﺮ  ﻋﺮﺿﺔ
اﻟﻬﻴﺌﺔ إدارة .  اﻟﺴﻴﺎرات-اﺧﺘﺒﺎرهﺎ  وﻃﺮق  واﻟﻤﻘﻄﻮرات  ﻟﻠﺸﺎﺣﻨﺎت  اﻟﺠﺎﻧﺒﻴﺔ  اﻟﺤﻤﺎﻳﺔ    
MOTOR VEHICLES 
LATERAL PROTECTION OF TRUCK AND 
TRAILER AND ITS METHODS OF TEST   1 
ﺗﻘﺪﻳﻢ 
ﻋﻀﻮ ﻓﻲ ﺗﻀﻢ إﻗﻠﻴﻤﻴﺔ  هﻴﺌﺔ اﻟﻌﺮﺑﻴﺔ  اﻟﺨﻠﻴﺞ  ﻟﺪول اﻟﺘﻌﺎون  ﻣﺠﻠﺲ  ﻟﺪول اﻟﺘﻘﻴﻴﺲ  هﻴﺌﺔ  اﻷﺟﻬﺰة  ﻳﺘﻬﺎ
 اﻟﻤﻮاﺻﻔﺎت  إﻋﺪاد اﻟﻬﻴﺌﺔ ﻣﻬﺎم وﻣﻦ ، اﻟﻌﺮﺑﻴﺔ  اﻟﺨﻠﻴﺞ  دول ﻓﻲ واﻟﻤﻘﺎﻳﻴﺲ  ﻟﻠﻤﻮاﺻﻔﺎت  اﻟﻮﻃﻨﻴﺔ
 ﻣﺘﺨﺼﺼﺔ  ﻓﻨﻴﺔ ﻟﺠﺎن ﺑﻮاﺳﻄﺔ  اﻟﺨﻠﻴﺠﻴﺔ  اﻟﻘﻴﺎﺳﻴﺔ . 
 
               اﻟﻔﻨﻴ اﻟﻠﺠﻨﺔ ﻋﻤﻞ ﺑﺮﻧﺎﻣﺞ  ﺿﻤﻦ اﻟﻌﺮﺑﻴﺔ  اﻟﺨﻠﻴﺞ  ﻟﺪول اﻟﺘﻌﺎون  ﻣﺠﻠﺲ  ﻟﺪول اﻟﺘﻘﻴﻴﺲ  هﻴﺌﺔ ﻗﺎﻣﺖ وﻗﺪ
رﻗ2-1  "  اﻟ اﻟﻔﻨﻴ اﻟﻠﺠﻨ     واﻹﻃ  اﻟﻤﺮآﺒ  ﻣﻮاﺻ  ﻟﻘﻄ  اﻟﻔﺮﻋﻴ  ﺨﻠﻴﺠﻴ "   ﺑﺈﻋ 
  اﻟﺨﻠﻴﺠﻴ  اﻟﻘﻴﺎﺳ  اﻟﻤﻮاﺻ  رﻗGSO2/DS/ECE 73: 2009 "  اﻟﺴ   - اﻟﺤﻤﺎﻳ
    اﺧﺘﺒﺎرهﺎ  وﻃﺮق  واﻟﻤﻘﻄﻮرات  ﻟﻠﺸﺎﺣﻨﺎت  اﻟﺠﺎﻧﺒﻴﺔ             "  اﻟﻤﺸ  إﻋ ﺗ وﻗﺪ ﻋﻤﺎن ﺳﻠﻄﻨﺔ  ﻗﺒﻞ ﻣﻦ
اﻟﻌﺮﺑﻴﺔ  اﻟﻘﻴﺎﺳﻴﺔ  اﻟﻤﻮاﺻﻔﺎت  اﺳﺘﻌﺮاض  اﻟﺼﻠﺔﺑﻌﺪ  ذات اﻟﻤﺮﺟﻌﻴﺔ  واﻟﻤﺆﻟﻔﺎت  واﻟﺪوﻟﻴﺔ  واﻷﺟﻨﺒﻴﺔ .  
   
 اﻟﻤﻮاﺻﻔﺔ  هﺬﻩ اﻋﺘﻤﺪت  وﻗﺪ  ﺧﻠﻴﺠﻴﺔ  ﻓﻨﻴﺔ آﻼﺋﺤﺔ         رﻗﻢ اﻟﻬﻴﺌﺔ إدارة ﻣﺠﻠﺲ  اﺟﺘﻤﺎع  ﻓﻲ)           
      ( ﺑﺘﺎرﻳﺦ  ﻋﻘﺪ اﻟﺬي ،         /      /       اﻟﻤﻮاﻓﻖ   ، هـ/      /       م . 
 
Foreword 
 
  
Standardization Organization for G CC (GSO) is a regional Organization 
which consists of the National Standa rds Bodies of GCC member States. 
One of GSO main functions is to  issue Gulf Standards /Technical 
regulation through specialized technical committees (TCs). 
 
GSO through the technical pr ogram of committee TC No . 2-1 "  The Gulf 
technical Subcommittee for vehicles and tyres standards " has prepared 
this Standard .  The Draft Standard  has been prepared by sultanate of 
Oman.  
 
The draft Standard has been pr epared based on relevant ADMO, 
International and National fore ign Standards and references. 
 
This standard has be en approved as Gulf  Technical Regulation by GSO 
Board of Directors in its mee ting No..../....  …….held on    /    /   /  H ,  /    
/   G 
 
  2MOTOR VEHICLES 
LATERAL PROTECTION OF TRUCK AND 
TRAILER AND ITS METHODS OF TEST  
 
 
 
1- SCOPE AND FIELD OF APPLICATION 
 This regulation is concerned with the requirements for the lateral 
protection (side guards) of trucks  and trailers having maximum mass 
exceeding 3.5 tones used for the carriage of goods. 
                   This regulation does not apply to tractors for semi trailers and vehicles 
designed and constructed for special purposes where it is not possible for 
practical reasons to fit such lateral protection. 
 
2- COMPLEMENTARY REFERENCES 
 
2.1 GSO 159/.1993.... “Motor Vehicles - Weights and Dimensions”. 
2.2 GSO  48/1984..... “Motor Vehicles - Conformity Certificates”. 
 
3- DEFINITIONS 
 
3.1 Motor vehicle:  A vehicle, excluding motor cycles or tr ailers, operated by 
means of a motor without dependence on rails, cables or similar guides. 
 3.2 Truck:  A motor vehicle intended fo r carrying goods.  It may also tows a 
trailer. 
 3.3 Maximum weight:  The weight stated  by the vehicle manufacturer to be 
technically permissible. 
 3.4 Approval of a vehicle: The approval  of a complete vehicle type with 
regard to its lateral protection; 
 3.5 Vehicle type : A category of vehicles  which do not differ with respect to 
the essential points such as the width of the rear axle, the overall width, 
the dimensions, the shape and the ma terials of the whole side of the 
vehicle (including the cab  if fitted), and the characteristics of the  3suspension in so far as they have a bearing on the technical requirements 
specified in this Regulation. 
 3.6 Maximum mass : The mass stated by the vehicle manufacturer to be 
technically permissible (this mass may be higher than the "permissible maximum mass" laid down by the national administration); 
 3.7 Unladen mass: The weight of the vehicle in running order, unoccupied 
and unladen, but complete with fuel, coolant, lubricant,  tools and spare 
wheel, if supplied by the vehicle ma nufacturer as standard equipment; 
 3.8 Unprotected road users: The pedestrian s, cyclists or motor cyclists using 
the road in such a way that they ar e liable to fall under the sides of the 
vehicle and be caught under the wheels. 
 
4- REQUIREMENTS 
 The following shall be met. 
 4.1 General 4.1.1 All vehicles carrying goods, includi ng tankers, mobile cranes, mobile 
workshops, trailers and semi-trailers shall be constructed and equipped in 
such a way as to offer, throughout their length, at both sides effective 
protection to unprotected road users ag ainst the risk of  falling under the 
sides of the vehicle and being caught under the wheels. This shall be complied by providing one of the following: 
4.1.1.1 The vehicle is equipped with a sp ecial lateral protective device (side 
guards) according to the technical re quirements specified in item 4.2.or  
4.1.1.2 If the vehicle is so designed and/or equipped at the side that by virtue of 
their shape and characteri stics, its component part s can be incorporated 
and/or regarded as replacing the late ral protective device and comply with 
the requirements specified in item 4.2. 
 4.2 Technical 4.2.1 The side guard shall not increase the overall width of the vehicle. 
4.2.2 The main part of side guard’s oute r surface shall not be more than 120 
mm in board from the outer most plane of the vehicle. 
4.2.3 The side guards forward end may be  turned inwards in accordance with 
the requirements mentioned below.  44.2.4 The side guard’s rearward end sha ll not be more than 30 mm in board 
from the outermost edge of the rear tyres over at least the rearmost 250 
mm. 
4.2.5 The outer surface of the guard shall be smooth, and so far as possible 
continuous from front to the rear. 
4.2.6 Adjacent parts may overlap, provide d that the overlapping edge faces 
rearwards or downwards or a gap of not more than 25mm measured 
longitudinally may be left, provided that the rearward  part does not 
protrude outboard of  the forward part. 
4.2.7 Domed heads of bolts or rivets may protrude beyond the surface to a 
distance not exceeding 10 mm and other parts may protrude to the same 
extent provided that they are smooth and rounded. 
4.2.8 The external edges and corners shall be rounded with a radius not less 
than 2.5 mm. 
4.2.9 The device may consist of a continuous flat surface or of one or more 
horizontal rails or a combin ation of surface and rails. 
4.2.10 The rails used shall be not more than 300 mm apart. 4.2.11 The rails used shall be not less than 50 mm high for vehicles having 
maximum mass less than 12 tons and trailers having maximum mass less 
than 10 tons. 
4.2.12 The rails used shall be not less th an 100 mm high for vehicles having 
maximum mass more than 12 tons and trailers having maximum mass 
more than 10 tons. 
 4.2.13 The forward edge of the side guard shall be constructed and positioned in 
such a way that it will comply with the following: 
 4.2.13.1 On a motor vehicle:  It shall not be  more than 300 mm to the rear of the 
vertical plane perpendicular to the longitudinal plane of the vehicle and 
tangential to the outer surface of th e tyre on the wheel immediately 
forward of the guard. 
4.2.13.2 On a drawbar trailer: It shall not be  more than 500 mm to the rear of the 
vertical plane perpendicular to the longitudinal plane of  the trailer and 
tangential to the outer surface of th e tyre on the wheel immediately 
forward of the guard. 
4.2.13.3 On a semi-trailer: It shall not be more than 250 mm to the rear of the 
transverse median plane of the support legs, if support legs are fitted, but 
in any case the distance from the front edge to the transverse plane  5passing through the centre of the kingpin in its rearmost position may not 
exceed 2.7m. Construction: 
4.2.13.4 When the forward edge of the guard lies in an open space, the edge shall 
consist of a continuous vertical member  extending the whole height of the 
guard, the outer and forward faces of this vertical member shall measure 
at least 50 mm rearwards and be turn ed 100 mm inwards in the case of 
trucks having maximum mass of 3.5 t ons to 12 tons and trailers having 
maximum mass of 3.5 tons to 10 tons. 
4.2.13.5 The outer and forward faces of this  vertical member in item 4.2.12.4 shall 
measure at least 100 mm rearwards and be turned 100 mm inwards in the case of trucks having maximum mass exceeding 12 tons and trailers having maximum mass exceeding 10 tons. 
4.2.13.6 On a motor vehicle if the forward edge of the guard which is 300 mm 
dimension falls within the cab, the guard  shall be so constructed that the 
gap between its forward edge and th e cab panels does not exceed 100 mm 
and it shall be turned in th rough an angle not exceeding 45
o. 
4.2.13.7 On a motor vehicle if the forward edge of the guard which is 300 mm 
dimensions falls behind the cab and the side guard is extended forward to 
within 100 mm of the cab, then the pr ovisions of the previous item shall 
be met. 
4.2.14 The rearward edge of the side gua rd shall not be more than 300 mm 
forward of the vertical plane perpendi cular to the longit udinal plane of the 
vehicle and tangential to the outer surface of the tyre on the wheel immediately to the rear. 
4.2.15 The lower edge of the side guard shall be not more than 550 mm above 
the ground at any point. 
4.2.16 The upper edge of the side guard sh all not be more than 350 mm below 
that part of the structure of the vehicl e, cut or contacted by a vertical plane 
tangential to the outer surface of the tyres, excluding any bulging close to 
the ground, except in the following cases. 
4.2.16.1 Where the plane in the item 4.2.15 does not cut the structure of the 
vehicle, then the upper edge shall be level with the surface of the load-
carrying platform, or 950 mm from the ground whichever is the less. 
4.2.16.2 Where the plane in item 4.2.15 cuts the structure of the vehicle at a level 
more than 1.3 m above the ground, then the upper edge of the side guard 
shall not be less than 950 mm above the ground. 
4.2.16.3 On a vehicle specially designed and c onstructed, and not merely adapted,  
for the carriage of a container or de mountable body, the upper edge of the  6guard shall be determined in accordance with any one of the items 
(4.2.16.1 and 4.2.16.2) mentioned above. 
 4.3 Design 4.3.1 The side guards shall be rigid and shall be mounted securely without any 
vibration in normal use of the vehicle. 
4.3.2 The side guard shall be made of me tal or any other suitable material. 
 4.4 The side guard shall not be used for the attachment of brake, air or 
hydraulic pipes. 
 4.5 Strength  The guard shall be capable of withsta nding a horizontal static force of 1 
Kn applied perpendicularly to any part of its external su rface by the centre 
of a ram the face of which is circular  and flat and the deflection of the 
guard under load is not more than: 
4.5.1 30 mm over the rearmost 250 mm of the guard. 4.5.2 150 mm over the remainder of the guard.  
5- LABELLING AND MARKING 
 
5.1 Each side guard shall be legibly an d durably marked or labeled with the 
following information in Arabic and/or English. 
5.1.1 Manufacturer’s name and address. 5.1.2 Vehicle type for which th e side guard is designed. 
5.1.3 Brief description of the side gua rd e.g. dimensions and constituent 
materials. 
5.1.4 Maximum mass.  
6- TESTING 
 
6.1 Sampling   Two large side guard for truck and tr ailer shall be supplied and subjected 
to the required tests prescr ibed in this standard. 
 6.2 Measuring instruments 6.2.1 Dimensions measuring instrument:  7 The instruments used shall perm it measurement to an accuracy of ± 1 mm. 
6.2.2 Force measuring instruments:  The instruments used shall perm it measurement to an accuracy of ± 5% of 
the range. 
 6.3 Tests  The following tests shall be carried out on the side gua rd withdrawn in 
accordance with item 6.1. 
6.3.1 Visual inspection  The side guard shall be visually in spected to check for damage, cracks, 
sharp edges, sharp corners, any other apparent defects in  the manufacture. 
6.3.2 Dimensions measurement 6.3.2.1 Apparatus  Suitable measuring instruments shall be used for checking the dimensions 
of the side guard. 
6.3.2.2 Preparation for the test 
- The vehicle shall be positioned on a horizontal and flat surface. 
- The steered wheels shall be in a straight ahead position. 
- The vehicle shall be unladen. - Semi-trailers shall be positioned on  their supports in an essentially 
horizontally manner. 
6.3.2.3 Procedure  The measurements shall be made on the side guard and the compliance 
with item 4 shall be checked. 
6.3.3 Strength test 6.3.3.1 Apparatus  The apparatus shall consists of a ram the face of which is circular and flat 
with a diameter of (220 ± 10) mm. 
6.3.3.2 Preparation for the test  The vehicle shall be positioned fo r the tests as explained in item 6.3.2.2. 
6.3.3.3 Procedure 
- The vehicle shall be positione d on a horizontal flat surface. 
- The circular ram of diameter (220 ± 10) mm shall be positioned at a 
point at 250 mm from the rear. 
- A horizontal static force of 1 Kn  shall be applied at this point. 
- The deflection of the guard from th e original fixed position shall be 
measured.  8- The test shall be repeated at se veral points along th e side guard and 
the deflection shall be measured. 
 
7- CRITERIA OF TECHNICAL CONFORMITY 
 
7.1 The criteria of technica l conformity shall be in accordance with the Gulf 
Standard G.S. 48 “Motor Vehicles  - Conformity Certificates”, 
 7.2 The side guard shall be considered co mplying with all the requirements of 
this standard when the withdrawn sa mple from the consignment or the 
supplied sample passes the tests. 
 7.3 In case one or more side guard in the sample fails to pass the test, a 
second sample double the number of units as the first one shall be withdrawn from the same consignment or the supplied sample and subjected to the tests. 
 The side guard shall be considered complying with requirements of this 
standard when all the un its of the second sample pass the tests, otherwise 
the side guard shall be considered non-complying.