Section 2(xiv) in The Static and Mobile Pressure Vessels (Unfired) Rules, 2016
(xiv)"cryogenic pressure vessel" means a pressure vessel intended for storage or transportation of cryogenic liquid and includes cold converters, vacuum insulated evaporators, vacuum insulated storage or transport tanks and thermosyphon tanks and includes a permanently installed cryogenic pressure vessel of 1000 litre water capacity or less for storage of cryogenic liquid;
