Why in news?
National Green Tribunal (NGT) directed the Delhi government to implement the odd-even car rationing scheme.
What is the odd-even scheme of Delhi?
	- Odd- even vehicle rule was implemented in 2015 in order to control pollution.
 	- The odd-even rule will mean that cars running with number plates ending in even numbers like 0, 2,4,6,8 will be allowed to run on even days.
 	- The odd-even rule earlier exempted certain cars and vehicles which include all ambulances, hybrid and electric vehicles, VVIP and embassy vehicles, cars driven by women drivers, and two wheelers.
 	- Vehicles running on CNG will also be exempt from the odd-even rules.
 	- Vehicles not complying with the odd-even scheme will be heavily fined with Rs 2,000.
 	- The fines will be collected on the spot so as to avoid vehicle impounds.
 	- Recently Delhi government announced this scheme was to remain in force from November 13 to 17
 
What are NGT’s decisions on odd-even scheme?
	- Recent weeks had encountered dangerously high levels of pollution in Delhi, now the particulate matter levels began reducing. 
 	- The air quality index was still in the severe category, but down to 403, from 486 as per the Central Pollution Control Board. 
 	- Earlier the NGT questioned Delhi government to give justifications on implementation of the scheme, as the pollution level started to fall.
 	- Now the NGT directed the Delhi government to implement the scheme, but on a condition that there would be “no exemption to any person, officer or individual, including two-wheelers from the odd even scheme”. 
 	- Delhi government has also announced that this time it will not be exempting women drivers from following the odd-even plan as the Green Court questioned the logic behind the same.
 
	- The emergency services vehicles like ambulances and fire brigades were exempted from the scheme.
 
Why two wheelers are not exempted this time?
	- Two-wheelers contributing 20% of vehicular pollution, the NGT observed.
 	- The two-wheelers are much more in number than other class of vehicles.
 	- They emit serious pollutants like carbon monoxide and hydrocarbon which are not emitted or negligibly emitted by the petrol vehicles.
 
 
Source: The Hindu