Understanding CMVR Regulations: Vehicle Safety Standards Explained

Visible Light Transmission (VLT) levels refer to the amount of light that passes through a lens or glass. The regulations specify different requirements for various windows:

For Windscreen & Rear Glass

Every motor vehicle's windscreen and rear window safety glass must transmit at least seventy per cent of visible light and adhere to CMV Rule 100 (2),(3) & (3A) & IS 2553 (Part 2) (Revision 1): 2019, subject to periodic amendments.

For Side Glass

The safety glass or safety glazing on the side windows of every motor vehicle must allow at least fifty percent visual light transmission and comply with Indian Standards IS 2553 (Part 2) (Revision 1): 2019, subject to periodic amendments.

UltrashieldX Safety Glazing Material has been successfully tested and adheres to amended rules CMV Rule 100 (2),(3) & (3A) & IS 2553 (Part 2) (Revision 1): 2019

Transparency Check

VLT & IR Rejection Meter

A VLT meter is a device used to measure the Visible Light Transmission (VLT) through a vehicle’s windows. According to regulations, front and rear windows must allow at least 70% light, while side windows require a minimum of 50%. This tool is useful for verifying the transparency level of automotive glass when needed.