DRAFT KENYA STANDARD KS 2295-1:2018 PUBLIC REVIEW DRAFT  
KS 2295-1:2018 © KEBS 2018  
 
TECHNICAL COMMITTEE REPRESENTATION  
The following organizations were repres ented in the technical committee.  
Motor Vehicle Inspection Unit Road Safety Associ ation of Kenya Kenya Federation of Jua Kali 
Association Kenya Automotive Security Associ ation Ministry of Transport, Infrastructure, 
Housing and Urban Development (CM&TE) Kenya Accredi tation Services (KENAS) Speed Governors and Road 
Safety Association Saferider Management Systems Limit ed Pinnacle Systems Ekas Technologies Matatu Welfare 
Association KEMRA Associated Battery Manufacturers East Africa Ltd. Kenya Bureau of Standards – Secretariat  
 
 
Tel.: (+254 053) 33151, 63377 Fax: (+254 
041) 229448 Fax: (+254 057) 21814 Fax: (+254 053) 33150  
© KEBS 2018 KS 2295-1:2018  
 
 
P
art 1: Performance and installation requirements  
Rift Valley Regional Office  
P.O. Box 8111, Eldoret Tel.: (+254 053)  33151, 63377 Fax:  (+254 053) 33150  
 
 KS 2295-1:2018 © KEBS 2018  
Foreword  
This Kenya Standard was developed by the Technical Committee on Extra-low Voltage equipment under the 
guidance of the Standards Projects Committee (SPC) and is in accordance with the procedures of the Bureau.  
The first edition of this standard was developed in 2011 fo llowing an increased number of accidents that occurred 
due to speeding. At the time, government had put in place a number of measures aimed at curbing speeding on the 
Kenyan roads. Combined with the mounting of speed traps, limiting the maximum  
“road speed” information to the primary computer -thereby  signaling the requirement to restrict “specific”  
Acknowledgement is hereby made for assi stance derived from these sources.  
 © KEBS 2018 KS 2295-1:2018  
Table of contents  
TECHNICAL COMMITTEE REPRESENTATION........................................................................................ii Fo reword 
............................................................................................................................... ......................iv 1 Scope 
............................................................................................................................... ................... 1 2 Normative 
references..................................................................................................................... ..... 1  
APPENDIX A SAMPLE DISPLAY CERTIFICATE.................................................................................... 10 
APPENDIX B recommended reported data and data format....... .................. ................... .............. .......... 11  KS 2295-1:2018 © KEBS 2018  
APPENDIX C Modifications to KNWA 2460:2013 ....................................................................................  13 
APPENDIX D SAMPLE CERTIFICATE OF COMPLIANCE..................................................................... 17  
DRAFT KENYA STANDARD KS 2295-1:2018  
1 Scope  
This Part of this Kenya Standard specifies requirements fo r the performance and installation of devices designed to 
limit the maximum road speed of motor v ehicles by control of engine power.  
This part of this Kenya Standard also specifies per formance requirements of Speed Recording and Reporting 
Devices. These may be a separate unit to be installed on the vehicle and an add-on or 
on-board  
NOTE 1 unless otherwise referred to in clause 3, the device is referred to hereafter as the limiter. NOTE 2 Permitted 
tolerances of the system may allow the vehicle to exceed the 
set speed.  
2 Normative references  
The following referenced documents are 
indispensable for the application of this 
document. For dated references, only the edition 
cited applies. For undated references, the latest 
edition of the referenced document (including 
any amendments) applies.  
Traffic Act, CAP 403 of the laws of Kenya.  KNWA 2460: Motor vehicle garages for repair 
and services — Code of practice  
KS 2295-2: Maximum road speed limiters for 
motor vehicles ─ Part 2: Specification for system 
and component requirements  
3 Definitions  
For the purposes of this Kenya Standard the 
following definitions apply.  
3
.
1
 
A
u
t
h
ority  
the National Transport and Safety Authority at the time of approval of this standard or any of its  
3.2 authorized official  
3.3 calibration  
comparison between an instrument and a measuring stand ard of higher accuracy to detect, correlate, adjust, and 
system 
built in the vehicle. 
This Part of this 
Kenya Standard 
does not cover methods of test 
and procedure for 
type approval which  
are 
covered under KS 2295-2. The two parts of this standard 
cannot therefore be read in isolation.  
document the accuracy of the item being compared  
source (or sources) of the vehicle’s motive power  
3.5 inspection Device  
piece of equipment that has been designed to test all circui try and shall be able to detect any interference with the 
system  3.6 juddering  
action of shaking rapidly during the retardation process  
3.7 limiter supplier  
in the case of maximum road speed limiters fitted in the course  of construction of the vehicl e, the vehicle constructor. 
In all other cases, the limiter manufacturer or any individual or company authorized to import  
in Kenya unless it demonstrates full compliance with all t he requirements set out in this part of this Kenya Standard 
and as tested in accordance with KS 2295-2.  
The speed limitation shall be such that the vehicle in norma l use complies with the provisions of this standard. It 
shall be so designed, constructed, that its performance is  not affected by the vibrations to which the vehicle may be 
subjected and as tested in accordance with KS 2295-2.  
 The Limiter shall be so designed, constructed and assembled and fitted to the vehicle to make it maximum 
tamper proof and “failsafe” against various factors such as  disconnection/failure of various components e.g. power 
supply, speed sensor, mechanical actuator system, linka ges or any unauthorized modification and adjustment to the 
system. If the plug/s to the electronic co ntroller is/are removed, power is disconnected or if the speed signal and/or 
wire is disconnected the vehicle shall automatically def ault to a limp mode and shall not be able to be driven in 
excess of forty kilometers per hour (40km/h). In the ev ent of any form of malfunction an alert signal shall be 
generated and transmitted in the prescribed manner ( Error! Reference source not found. ). The speed limiter shall 
be set in such a way that it shall be ha rd to tamper with (adjust speed) and   easy to 
detect tampering. The inviolability shall be demonstrated to the 
Authority and testing agencies with documentation analyzing 
the failure mode in which the system will be globally examined. The analysis shall show, taking into account the different states 
a modification of the input or output states on the functioning, 
the possibilities modifications by failures or by tampering and possibility of their occurrence. T he analysis level will be always 
to the first failure.  The speed limiter shall have in built features that allow functionality checks when the vehicle is not in motion. 
The speed limiter system shall be capable of being verifi ed, authenticated and tested by  an authorized official by 
means of a calibrated electronic device plugged into a rece iver installed in a conveni ent position on the vehicle, 
whilst the vehicle is “on” the road. This device should te st all circuitry and shall be able to detect any interference 
with the system.  
The functionality check device shall be independent of the sp eed limiter type and shall be capable of testing all 
the types of speed limiters approved for fitting in vehicles in Kenya.  
 
The speed limiter shall pre-warn the driver, by wa y of a high frequency buzzer, that the set speed  
When the set speed is reached, the speed limiter sh all temporarily cause the engine to lose power.  
A second (critical) road speed limiter set point shoul d activate a retarder device (where legislated)  
and shall, automatically, activate the retarder to ensur e that the vehicle cannot exceed the preset limit.  
No vehicle that is covered by the road speed limit legislation may proceed on a public road without an 
approved road speed limiter device being installed and cali brated and sealed and in possession of an authorized 
certificate of compliance or with the device interfered with or with the device in an inoperative condition.  
 All road speed limiter systems shall be checked for accu racy and functionality, at least once per year, at the 
time of the motor vehicle inspection.  
 
 The 
speed limiter shall monitor the road speed of the vehicle by  the installation of an electroin the speedometer circuit 
shall be wired and sealed for  A duly signed original certificate in indelible ink containing the information as detailed in APPENDIX A shall be 
clearly displayed in an easily access ible position within the vehicle.  
Requirements for Speed Limiters.  
The speed limiter shall be approved as a device alone upon satisfying the requirements described below  
Workmanship  
The limiter shall be visually examined for workmanship, finish, marking and general requirements mentioned in 4.1.  
No effect on the normal operation of vehicle  
4.2.2.1  
speed limit when the limitation function comes to play.  
4.2.2.2  
4.2.2.3  
and as 
tested in accordance with KS 2295-2. When the limiter is  intended for a specific vehicle model, it shall 
meet the requirements specified in this standard.  Compliance with the requirements of clause 4.2.2 shall be tested in accordance with KS 2295-2. 
Compatibility with environmental conditions  
4.2.3.1 The speed limiter shall be so designed, constructed and assembled so as to resist vibrations, corrosion, 
dust, humidity, petrochemicals and aging phenomena to which it may be exposed.  
The 
speed limiting function shall be performed progre ssively in such a manner that excessive  
 Compliance shall be tested in accordance with KS 2295-2.  
4.2.3.2 The speed limiter shall operate satisf actorily without unacceptable elec tromagnetic disturbance from any 
other device in its environment.  
Compliance shall be tested in accordance with KS 2295-2.  
The speed limiter shall be resistant to reverse polarity connections .  
i. Principles of operation covering details  of how the road speed limiter works.  
ii. Fitting Instructions.  iii. Calibration or programming instructions.  
iv. Inspection and functionality checks.  
v. Maintenance and troubleshooting instructions.  
 vi. Parts list.  
vii. Manufacturer’s name and authorized trade mark  viii. model  
Requirements for the Speed recording, storing and transmitting device (recorder)  
General  
4.3.1.1 The recorder shall incorporate a combination of an onboard and off-board mechanism for recording and storing 
the speed of the vehicle.  
4.3.1.2 The speed shall be recorded in Km/h at not more than five seconds interval.  
4.3.1.3 The retrieved data shall clearly and in an unambiguous manner display the date (ddmmyyyy) of recording.  
4.3.1.4  
4.3.1.5  
4.3.1.6  
Onboard data storage  
4.3.2.1  
remain retrievable.  
4.3.2.2  
4.3.2.3  
data.  
4.3.2.4  
4.3.2.5  
d.c.  
 
  
The system shall, in real time, electronically  relay speed data to the speed limiter’s data  
The system shall, in real time, electronically rela y speed data to a data storage  system as required by 
the Authority.  
4.3.3.3 All detected violations shall, in real time, be tr ansmitted to the limiter supplier and the Authority’s 
storage system and shall trigger an alarm to both the supplier and the Authority.  
4.3.3.4 If for any reason there is loss of power to the system, the system shall automatically trigger an alarm to both 
the supplier and the Authority.  
 
4.3.3.5 Any loss of signal from the system to the data  storage system lasting for more than five minutes 
(300 seconds) shall automatically trigger an al arm to both the supplier and the Authority.  
Conditions for Limiter Suppliers of Speed Limiters.  
For the purpose of giving full effect to the Traffic Act CAP 403 of the laws of Kenya and all other applicable 
regulations, the following conditions shall be followe d by all Limiter suppliers of speed limiters.  
Manufacturers authorization  
No person shall be authorized to be a Limiter Supplier  
Compliance shall be by proof of a certified copy of the 
manufacturer’s authorization certificate.  
Manufacturers warranty  
The road speed limiter shall have a manufacturer’s 
warranty covering a period of not less than 12 months 
and this shall be properly documented on a warranty 
card issued to the vehicle owner where the road speed 
limiter is installed.  
Compliance shall be by 
presentation of a warrant y card to the approving 
authorities that at the minimum meets the requirements 
of 4.4.12.  
 
 
4.4.3.2 Where a fitting centre is also used as a garage, 
the facility shall meet all the requirements specified in 
KNWA 2460:2013 and all the additional requirements 
specified in APPENDIX C .  
4.4.3.3 Where a facility is used purely as a fitting centre, 
the facility shall meet the requirements specified in 
KNWA 2460:2013 and as modified in APPENDIX C .  
Change in design or construction of the approved type of speed limiter.  
A Limiter supplier shall seek fresh approval when a speed limiter for which approval was given changes  
Training of government technical personnel  
The Limiter Supplier who introduces a type of speed limiter for approval shall train officers from the relevant 
 
for any 
type of speed limiter without the manufacturer’s 
authorization. A limiter supplier shall have a 
specific manufacturer’s authorization for dealing in a particular type of road speed limiter in Kenya. 
 
4.4.3.1 
The authorized Limiter Supplier shall open fitting centers and appoint agents in accordance with the 
existing legal requirements.  regulatory/testing agencies in the fitting and inspection  of the presented speed limiter once approved.  
Inspection devices  
The limiter supplier shall ensure that the speed limiter pres ented for approval is compatible with the functionality 
check device described in clause 4.1.5 & 4.1.6 .  Records  
4.4.7.1 The Limiter supplier shall keep records of all vehicles fi tted with the speed limiters. A master register, kept in 
a central place, shall have all the information for fitti ngs at all branches and appoi nted agents/fitting centers.  
4.4.7.2 The limiter supplier shall forward the compiled data to  the Authority in such a manner as shall be  
4.4.13.1 A Limiter Supplier shall train relevant officers from  the Authority and testing agencies in the fitting and 
detecting of tampering before being allowed to start operati on. Records of such training shall be made available at 
the time of applying for approval.  
4.4.13.2 A Limiter Supplier shall provide the following each to the Authority and testing agencies before being 
allowed to start operation:  
 
 i. Submit one sample of the speed limiter for light  and heavy commercial each (in case where the Limiter 
Supplier intends to fit both light and heavy commercial vehicles).  
ii. Submit one sample of the calibration device for each of the speed limiters.  
iii. Submit two samples of certificate of fitting.  
 Submit a list of physical addresses for all speed limit er-fitting centers under Limi ter Supplier’s control.  
 Submit two (2) copies of the technical manuals.  
 
vi. Submit two of the samp le warranty certificates.  
vii. Submit two copies of the user manuals.  
 
4.4.13.3 The Limiter Supplier shall update the agencies in  
4.4.13.4 Before starting operations, the Limiter Supplier shall 
sign a commitment binding them to the terms and conditions 
for Limiter Suppliers of s peed limiters for the effective 
implementation of the Speed Limiter Regulations as shall be 
prescribed by the Authority 
from time to 
time.  
Poor field performance  
In case of poor field performance, the approval of 
any of the approved speed limiters shall be revoked 
by the Authority in consultation with other 
approving/testing agencies/authorities once 
violation of quality performance and lack of full compliance to other contractual obligations is 
established.  
shall be kept.  
4.4.13.2 
on any new fitting centers under their control and the responsible signatories to  the fitting certificates 
at those centers.  
APPENDIX A SAMPLE DISPLAY CERTIFICATE (informative)  
APPENDIX B recommended reported data and data format (informative)  
B.1. Reports to be transmitted  
B.1.1. Top Speed reached within the last 6 hours (TP). This is the maximum speed recorded within the last six hours  
B.1.2. Speed records The speed records specified in 4.3.3 shall be continuously updated as required by this 
standard or as  
B.1.3. Violations -VIOL  
Violations represent information any informat ion described in this standard such as over 
speed, tamper  
e.g. Disconnecting the signal wire  
B.2. Data Header  
Each device header shall have data containing 
information specific to the particular device 
which shall be none erasable once programmed 
into the device. This information shall be programmed first before the device can allow any other features of the speed recording device to be initialized. Below is a list of the information 
to be captured in the device header:  
a) VEHICLE OWNERS NAME.............  
 c) OWNER PHONE NO..................  d)  e)  f)  g)  h)  i)  
j)  k)  
FITING AGENT ID.................  
NAME & LOCATION OF STATION......  
EMAIL ADDRESS................... o) AGENT PHONE NU MBER..............  
p) BUSINESS REG. NO................  
B.3. Commands  
prescri
bed by the Authority  
 
b) 
VEHICLE OWNER ID ...............  These are ASCI characters sent from a host to a device and may have a length of one byte or more.  The idea is to standardize the commands so that all speed limiters/recorders respond to known commands when 
specific data reports are requested from the record ing device. See example given in the table below  
 
FUNCTION  COMMAND  EXPECTED OUTPUT  
RESET DEVICE  RST  The recording device is reset  
READ TRIP 
DATA  TRP  All speed for the last SIX HOURS records 
stored in the device are printed on to the 
screen  
Etc.    
The premises shall be insured  
 
APPENDIX C Modifications to KNWA 2460:2013 (normative)  
The requirements of KNWA 2460:2013 sha ll apply except as modified by this appendix where a facility doubles up 
as both a fitting centre and a garage or where the facility is used as a pure fitting centre.  
C.1. Requirements for garages used as fitting centres  
Where fitting is done in a garage, the garage shall fully comply with KNWA 2460:2013 in addition to any  
C.2. Requirements for exclusive fitting centres  
Where fitting is done in an exclusive fitting centre the term “fitting centre” shall replace “garage” and the  
C.2.1. Where a requirement for garages as specified in KNWA 2460:2013 is not modified in this annex, the 
requirement shall apply as specified and users of  this standard shall comply with the same.  
C.2.2. The requirements of 11.2 apply except f) and h) which are optional.  
C.2.3. Requirements of 11.3 are optional  
C.2.4. The fitting centre shall have all the hand tools prescribed in 13.1, except those 
prescribed in c, d, g, h, I, k, o, p, q wh ich are optional. In addition, all fitting centres 
shall have the following hand tools: soldering gun, 
soldering wire, insulating tape  
ad
ditional 
requirements given 
in C.2.  
f
ollowing modifications shall apply.  
 
 
 
 Secure overnight 
parking  
 
 
 FUNCTION  COMMAND  EXPECTED OUTPUT  
RESET DEVICE  RST  The recording device is reset  
READ TRIP 
DATA  TRP  All speed for the last SIX HOURS records 
stored in the device are printed on to the screen 
Etc.    
The premises shall be insured  
 
3. Workshop GDH  
Floors – Shall be in good condition, clean and oil free  
Signage – Sufficient signage to indicate facilities and customer / commercial restrictions  
Signage – Workstation identification and clear no smoking sign  
Lighting – Adequate lighting with all tubes and bulbs in working condition  
Ventilation – The working area shall be well ventilated  
Covered working bays – General business to be conducted in a workshop which is roofed and walled 
(considering climatic conditions)  
Designated part storage area (parts  not to be stored in cars)  
First aid kit (easy access)  
Security provided  
Staff ablution: Clean and adequate  
4. Other requirements  
Administration (mandatory)  
Pin certificate  
VAT  
NHIF, NSSF  
 Quoting     APPENDIX D SAMPLE CERTIFICATE OF COMPLIANCE (informative)  
Serial No…………………………………………………………………..Dated……………………………  
The governor is calibrated and sealed at a frequency of ……. Hz not to exceed …………………………Km/h  This certificate is valid for 12 months from the date of issuing. It is an offence to tamper with the speed 
governor and it will nullify all warranty.  
Signed with stamp by Supplier/Dealer/Agent  
FITTING CENTER DETAILS  
Business Reg. No…………………………… Pin 
no……………………… VAT no………………….  
Company Address……………………………  
Date of installation/ inspection 
……………………..Certified by ………………….  
Sign……………………………………………
…….