12.4 Building services

1) The planning, design and installation of electrical installations, air-conditioning and heating work shall be carried out in accordance with Part-8 - Building Services, Section-2 - Electrical and allied Installations, Section-3 - Air Conditioning, heating and mechanical ventilation of National building Code of India, amended from time to time.

2) The planning design including the number of lifts, type of lifts, capacity of lifts depending on occupancy of building; population on each floor based on occupant load, height of building shall be in accordance with Section-5 - installation of Lifts and Escalators of National Building Code of India, amended from time to time. In existing buildings, in case of proposal for one additional floor, existing lift may not be raised to the additional floor.

3) The lifts shall be maintained in working order properly.