These days, going by the amounts of public money spent by ministers and bureaucrats even on comparatively less important matters, Rs 14,000 crore may not be regarded as a very substantial sum of money that our manufacturers are being expected to waste, and considering what vehicles that cause greater pollution can do to the health of millions in our country, there can be no reasons to find fault with the Supreme Court’s order banning the use of vehicles that cause even a little more pollution than those permitted to run under a stricter pollution control regime. For our readers not very familiar with acronyms like BS–III and BS–IV, the letters BS stand for ‘Bharat Stage’ in referring to emission standards instituted by the Centre. These words set the limits on the amounts of carbon monoxide, hydrocarbons, nitrogen oxides and particulate matter that vehicles can emit. BS–III standards were first introduced in April 2005 in the tiol Capital Region (NCR) and 13 other cities. These standards were later extended to the entire country in April 2010. In April 2016, the NCR and the 13 cities upgraded their permissible emission limits to BS–IV standards that are somewhat more rigid than the BS–III standards and these will now be enforced all over the country from today.