واﻟ واﻟ  ﻟﻠ  اﻟ  اﻟﻬ 
Saudi Standards, Metrology and Quality Org. (SAS O) 
 
 
      
 
 
   
Final Draft Standard  
 
   
SASO /FDS/31841/2020  
    
Road vehicles – Impact protection for the driver               
from the steering control s ystem 
 
 
 
ICS: 43.020 
 
This document is a draft Saudi Standard circulated for comments . It is, therefore, 
subject to alteration and modifi cation and may not be referred to as a Saudi 
Standard until approved by SASO SASO S TANDAR D SASO/FDS 31841/2020
1 
  
Conte nts 
 
 
 
1- Scope and field of the application ............... ................ ................ ................ ............ ......... 2 
 
2- Terms and definitions  .............................................................. ......................................... 2 
 
3- Technical requirements  ............................................................... ..................................... 2 
 
  
Bibliography   ............................................................. ...............................................................  5 SASO S TANDAR D SASO/FDS 31841/2020
2 
 Road vehicles – Impact protection for the driver                                    
from the s teering control sy stem 
 
 
1- Scope and field of the appl ication 
This standard specifies technical requirements for steering con trol systems that will minimize 
chest, neck, and facial injuries to the driver as a result of i mpact. 
 
This standard applies to passenger cars, multipurpose passenger  vehicles, trucks, and buses 
having a gross vehicle weight  rating (GVWR) of 4,500 kg or less . 
 
This standard does not apply to walk-in van. 
 
2- Terms and definitions 
For the purposes of this standard, the following terms and defi nitions are applied: 
2.1 Passenge r car 
A motor vehicle with motive power, designed for carrying 10 per sons or less including the 
driver and their luggage, except a low-speed vehicle, multipurp ose passenger vehicle, or trailer. 
2.2 Multipurpose passe nger vehicle 
A motor vehicle with motive power, designed to carry 10 persons  or less or goods equivalent 
by weight which is constructed ei ther on a truck chassis or wit h special features for occasional 
off-road operation. Except a low-speed vehicle or trailer 
2.3 Truck 
A motor vehicle with motive power, designed primarily for the t ransportation of property, 
special purpose equipment, or towing a trailer except a trailer . 
2.4 Bus 
A motor vehicle with motive power, designed for carrying more t han 10 persons, except a 
trailer. 
2.5 Steering control system 
The basic steering mechanism and its associated trim hardware, including any portion of a 
steering column assembly that provides energy absorption upon i mpact. 
 
3- Technical requirements 
Each passenger car and each multipurpose passenger vehicle truck and bus with a gross vehicle 
weight rating (GVWR) of 4,500 kg or  less shall meet the followi ng requirements: 
3.1 When the steering control system is impacted by a body block i n accordance with standard(1), 
at a relative velocity of 24 km/h., the impact force on the che st of the body block transmitted to 
the steering control system shall not exceed 11,120 N, except f or intervals whose cumulative 
duration is not more than 3 milliseconds. 
3.2 The steering control system shall be so constructed that no co mponents or attachments, 
including horn actuating mechanisms and trim hardware, can catc h the driver's clothing or 
jewelry during normal driving maneuvers. 
 
(1) Follow the standard SAE J944 JUN80 until the Saudi standard is adopted. 3SASO STANDARD  SASO /FDS 3184112020 
 Bibliography  
 
 
[1] 49 Subtitle B-Chapter V-Part 571-Subpart B Section 203 
(FMVSS 571.203) "Impact protection for the driver from the steering control system".