Section 2(64)(iv) in Assam Notified Urban Areas (Other than Guwahati) Building Rules, 2014
(iv)adequate passageway and clearances required for fire fighting vehicles to enter the premises shall be provided at the Main Entrance, the width of such entrance shall not be less than 4.5 meter if an arch or covered gate is constructed, it shall have a clear head room of not less than 5 meter;