state governments across the country have missed the October 1, 2004, deadline to implement the new in-use emission norms for vehicles, better known as the pollution under control (puc) certificate programme. The Delhi government has extended the deadline by one month and the West Bengal government by one-and-a-half months. The transport department of Tamil Nadu has sought an extension of two to three months from the state government. But it is feared that the new norms might not be implemented even by the extended dates because of laxity from all quarters