The department has made it mandatory for all vehicles to produce pollution under control certificate (PUCC), while purchasing fuel.

The vehicle owners have been provided a two-month period to acquire the certificate.

However, the decision is bound to run into hurdles due to the lack of adequate infrastructure. In a meeting held at Writers’ Buildings today, bus operators were apprised of the environment department’s decision.

“We are willing to cooperate. But, there is a shortage of sufficient testing centres in the city. There are only about 70 to 80 testing centres in the city,” said Rabindranath Saha, vice-president of Bengal Bus Syndicate.

He added, “However, the number of buses plying in Kolkata is more than 4,000. It takes approximately half an hour to conduct emission tests on each vehicle,” Sources said that most of the testing centres are located in the petrol pumps and narrow streets, making navigation difficult for the buses.