NEW DELHI: Sale and registration of any new vehicle not complying with BS-IV emission norms will not be allowed anywhere in the country from April 2017. Road transport ministry has issued a draft notification making BS-IV norms mandatory across the country in a phased manner starting this October."The mass emission standards for BS-IV shall come into force all over the country in respect of four-wheeled vehicles manufactured on or after April 1, 2017," said the notification.Already, BS-IV is applicable in almost all major cities including Delhi-NCR, Mumbai, Chennai, Kolkata and Hyderabad. As per the roadmap prepared by the government, BS-IV emission norms will be applicable from this October in Jammu and Kashmir except Leh and Kargil districts, Punjab, Haryana, Himachal Pradesh, Uttarakhand and most districts of Rajasthan and Uttar Pradesh.Similarly, the norms will come into force from April 2016 in Odisha, Kerala, Karnataka, Telangana, Union Territories of Daman and Diu, Dadra and Nagar Haveli and Andaman and Nicobar Islands. Same is the deadline for Thane and Pune districts in Maharashtra, and Surat, Valsad, Dangs and Tapi districts in Gujarat.Though this will not apply for transport vehicles plying on inter-state permits, national permits and all-India tourist permit, the draft notification said such exemptions will not be allowed from April 2017."This is a positive development as the entire country will be covered under this plan. At present, one can buy a vehicle and register it in a district that is not covered under BS-IV regime and can ply it in cities where the norm has become mandatory. But what we can foresee is that the sale of BS-III vehicles will be much more in the next two years across the country as BS-IV vehicles will cost a little more," said S P Singh of IFTRT, a Delhi-based think tank on transport issues.