‘No PUC, no fuel’ to strict vehicle checks: Delhi govt readies tougher winter pollution action plan. To combat the escalating air quality crisis in winter, the Delhi government is rolling out tough new pollution regulations. Among the highlights are the 'No PUCC, No Fuel' policy, a suspension on construction work, and rigorous testing for around 250,000 vehicles. The government is also weighing staggered work hours and limiting the use of polluting vehicles.