Section 2(1)(b) in The Orissa Factories (Control of Major Accident Hazard) Rules, 2001
(b)"Hazardous chemicals" means-(i)any chemical which satisfies any of the criterion laid down Part-I of Schedule 1 and is listed in Column (2) of Part II Schedule I;(ii)any chemical listed in Column (2) of Schedule II, and(iii)any chemical listed in Column (2) of Schedule III;