Section 27(5)(d) in The Static and Mobile Pressure Vessels (Unfired) Rules, 2016
(d)in case of non-toxic, non-flammable cryogenic liquid installations(water capacity of vessel not exceeding 1000 litres)-3.0 M from property line. The distance between the road tanker fill point and the storage vessel fill point shall not be less than 2 M. A robust crash barrier shall be provided in between storage vessel and hard stand in order to protect fill point as well as pressure vessel;