Speed Limitation Devices in India: Are They Mandatory for Commercial Vehicles?20 September 2025
Introduction: Driving Safer, Driving Smarter on Indian Roads
India’s roads are among the most dynamic and busy in the world. With overspeeding accounting for a significant number of accidents, the Indian government has taken major steps to enforce road safety. One such step is the mandatory installation of Speed Limitation Devices (SLDs) in commercial vehicles.
Are Speed Limitation Devices Mandatory in India?
Yes, Speed Limitation Devices are mandatory for various types of commercial vehicles, as per the Central Motor Vehicle Rules (CMVR Rule 118).
Categories of Vehicles That Must Have SLDs:
- New Commercial Vehicles: Manufactured on or after October 1, 2015, must be factory-fitted with SLDs.
- Retrofit Vehicles: Vehicles registered after April 1, 2013, may require SLD retrofitting based on state regulations.
- Passenger Transport Vehicles: Buses, school vans, contract carriages.
- Hazardous Goods Carriers: Must follow strict speed control guidelines.
- Goods Carriers: Based on Gross Vehicle Weight (GVW).
How Do Speed Limitation Devices Work?
At MIJO AUTO GAS, we manufacture two types of government-approved SLDs:
1. Fuel-Type Speed Limitation Device
- Voltage: 10V DC to 24V DC
- Dimensions: 142 x 193 x 47 MM
- Weight: 1.394 KG
- Current: 1A
2. Electronically Controlled Type SLD
- Voltage: 10V DC to 24V DC
- Dimensions: 67 x 67 x 29 MM
- Weight: 1.394 KG
- Current: 500 mA
Why Did the Government Mandate SLDs?
The decision to mandate SLDs is based on key safety and environmental goals:
- Reduces road accidents by preventing over-speeding.
- Promotes disciplined driving among commercial operators.
- Improves fuel efficiency with consistent speed control.
- Extends vehicle lifespan by reducing wear and tear.
- Lowers emissions contributing to environmental protection.
Why Choose MIJO’s Speed Limitation Devices?
MIJO Auto Gas Pvt. Ltd. is a leading Speed Limitation Device manufacturer in India with over two decades of trusted innovation.
What Sets MIJO Apart?
- Certified by ARAI, ICAT, and ECE R89
- Designed to be tamper-proof and reliable
- Integrated with modern ECUs and traditional fuel systems
- Supported by a strong nationwide dealer network
- Manufacturing capacity of 180,000+ SLDs annually
Frequently Asked Questions (FAQs)
Is retrofitting SLD mandatory for older vehicles?
Yes, depending on registration dates and state-specific rules.
Can MIJO’s SLD be installed on school buses?
Yes, they are compliant with school transport regulations and pre-set to 60 km/h.
Are MIJO SLDs tamper-proof?
Yes, they are built with tamper-resistant components to ensure full compliance.
Conclusion: Invest in Safety, Ensure Compliance
Speed Limitation Devices are no longer optional — they are an essential component of a safer and more efficient transportation system in India.
Choose MIJO for government-approved, durable, and high-performance SLDs. We also offer innovative solutions like CNG kit for car and options to convert petrol car to CNG for better efficiency and lower emissions.
