Note4Students

From UPSC perspective, the following things are important :

Prelims level: PUC Certification

Mains level: Delhi Air Pollution issue

Motorists will not be able to buy fuel in Delhi without a valid Pollution Under Control (PUC) certificate from October 25.

The PUC certificate is a document that any person driving a motor vehicle can be asked to produce by a police officer in uniform authorized by the state government.
These issue certificates if a vehicle is found complying with the prescribed emission norms.
Since the Motor Vehicles (Amendment) Act, 2019 came into force, PUC certificate has been made mandatory.
A PUC certificate contains information such as the vehicle’s license plate number, PUC test reading, date on which the PUC test was conducted and the expiry date.

According to Central Motor Vehicles Rules, 1989, every motor vehicle is required to carry a valid PUC Certificate after the expiry of period of one year from the date of its first registration.
This includes those conforming to BS-I/ BS-II/ BS-III/BS-IV /BS-VI as well as vehicles plying on CNG/LPG.
However, the validity of four-wheeled BS-IV compliant vehicles is one year and for other vehicles it is three months.

The computerized model for pollution check was developed by the Society of Indian Automobile manufacturers.
A gas analyzer is connected to a computer, to which a camera and a printer are attached.
The gas analyzer records the emission value and sends it to the computer directly, while the camera captures the license plate of the vehicle.
Subsequently, a certificate may be issued if the emission values are within the limits.

Emissions from automobiles are major contributors to air pollution all over the world.
The smoke emitted from vehicles contains the following pollutants: