what does low emission zone in london mean
London low emission zone The London Low Emission Zone (LEZ) is a traffic pollution charge scheme with the aim of reducing the tailpipe emissions of diesel-powered commercial vehicles in London. Only vehicles that do not conform to higher emission standards are charged, the others may enter the controlled zone free of charge. The low emission zone started operating on 4 February 2008 with phased introduction of an increasingly stricter regime until 3 January 2012. The scheme is administered by the Transport for London executive agency within the Greater London Authority.
Bharat Stage emission standards The standards, based on European regulations were first introduced in 2000. Progressively stringent norms have been rolled out since then. All new vehicles manufactured after the implementation of the norms have to be compliant with the regulations.[2] Since October 2010, Bharat Stage (BS) III norms have been enforced across the country. In 13 major cities, Bharat Stage IV emission norms have been in place since April 2010[3] and it has been enforced for entire country since April 2017. In 2016, the Indian government announced that the country would skip the BS-V norms altogether and adopt BS-VI norms by 2020.[4]