occupational poisoning and occupational disease "occupational poisoning and occupational disease" means a poisoning or a disease arising out of or in connection with work and is of a class specified in Schedule 3; PU(A) 128/2004 - OCCUPATIONAL SAFETY AND HEALTH (NOTIFICATION OF ACCIDENT, DANGEROUS OCCURRENCE, OCCUPATIONAL POISONING AND OCCUPATIONAL DISEASE) REGULATIONS 2004 2. Interpretation.