Some major hospitals in India have sought the Directorate General of Civil Aviation's permission for launching helicopter emergency medical services, according to the Press Trust of India. "We have received applications from some big hospitals seeking approval for construction of rooftop helipads and other infrastructure", DGCA chief Kanu Gohain said at a seminar on HEMS in New Delhi, adding that a final decision was yet to be taken. Maintaining that DGCA has already issued guidelines for developing HEMS facilities as well as those for constructing make-shift helipads, he said choppers should also conform to the laid-down standards, especially relating to noise pollution when they are operating near hospitals. For more news on India from Rotor & WIng