Section 4(1)(a) in Punjab Major Accident Hazard Control Rules, 1993
(a)an industrial activity, [-] [The words 'other than isolated storage' omitted vide Punjab Notification No. G.S.R.45/C.A. 63/48/S. 112/Amd. (I)/2002, dated 27.11.2002.] in which a hazardous chemical is or may be involved ; and