What are the requirements for workplace safety according to NCh436?
Existence of an internal regulation of hygiene and safety
Existence of a Paritarian Committee of Hygiene and Safety
Existence of an Emergency Plan
Existence of an Expert in Risk Prevention
Training of workers

a) I, II, III, IV and V are correct.
b) I, II, III and IV are correct.
c) II, III, IV and V are correct.
d) I, III, IV and V are correct.