BS 4 vs BS 6 in automobiles
The auto industry is set to transition to the BS6 regime in April 2020, in keeping with the Supreme Court’s diktat. This is not the first time that manufacturers have had to reconfigure their engines to meet emission control norms . The Bharat Stage (BS) norms, which are based on European emission standards , were initially rolled out in 2000. Subsequent iterations, BS2 and BS3, came into effect in 2001 and 2005 respectively. However, it wasn’t until BS4 was implemented that emission levels were capped at levels comparable to global standards. In 2016, the government decided to skip BS5 in favour of devising a more stringent standard to check rising pollution from vehicular exhausts. After much deliberation and extensions, it was decided that the final deadline for the implementation of BS6 norms would be April 2020. How is BS6 different from BS4? The new emission standard will require both automobile manufacturers as well a...