CNG Cars: CNG four-wheelers registered in Delhi will not be exempted from the odd-even road use arrangement, according to a draft plan by the Delhi government. The plan aims to reduce pollution by reducing vehicular congestion. However, taxis registered in Delhi, regardless of fuel type, will be exempted from the day-number requirement. Experts argue that only vehicles with zero tailpipe emissions should be allowed to run and that emissions should be checked when issuing a pollution check certificate. Uber has urged the government to consider scientific evidence and the potential humanitarian crisis when implementing measures to fight pollution.