CO
HC
PM
SOX
1.4.2018
1.4.2019
1.4.2020
1.4.2025
Two wheeler only
Light motor vehicle (LMV) only
Two wheeler and LMV
Heavy motor vehicles (HMV)
Two wheeler
Two wheeler and light motor vehicle
Light motor vehicle
Heavy motor vehicle
to trap the exhaust gas
to trap the fresh charge
to trap the leak off fuel
to trap the fuel vapour