Buses, heavy vehicles will need to use speed limit control devices starting next year - Anthony Loke

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The Ministry of Transport, through the Road Transport Department (JPJ), will implement the enforcement of Speed Limitation Devices (SLD) on commercial vehicles, including express and sightseeing buses, in stages starting October 1, 2025.

SLD is a speed limit control device specially designed to limit the maximum speed of a vehicle. This device serves as an important safety measure to prevent driving beyond the set speed limit, especially for vehicles carrying heavy loads or passengers.

The SLD enforcement implementation method will be implemented as follows.

 

SLD Functionality Verification

Starting 1 October 2025, commercial vehicles (over 3,500kg) registered from 1 January 2015 are required to obtain confirmation of SLD function and report from a party appointed by JPJ. The document must be renewed every two years and kept in the vehicle for enforcement purposes.

 

SLD activation in ECU

Vehicles registered before 1 January 2015 and having SLD in the Electronic Control Unit (ECU) system are required to activate it from 1 January 2026.

This includes rebuilt and imported used vehicles. The verification and related documents need to be renewed every two years.

 

Implementation of COP at the factory

Starting April 2025, JPJ will carry out Conformity of Production (COP) inspections at production plants for models that have had a Vehicle Type Approval (VTA) Certificate since 2015, to ensure that SLD settings comply with the National Speed Limit before being marketed.

 

Retrofit installation of SLD

Starting July 1, 2026, commercial vehicles that do not have an SLD system are required to install this device in addition to existing vehicles (retrofit) and be certified by a qualified party as follows:

  • Technical Service (TS) recognised by JPJ
  • Workshop or service facility recognised by JPJ OR
  • Accredited Certification Body (by the Malaysian Standards Department) recognised by JPJ.

The verification document also needs to be renewed every two years and carried in the vehicle at all times for enforcement purposes by JPJ.

 

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