Correct me if I am wrong..
SL's OHS is supposed to be covered by the Factories Ordinance No. 45 of 1942 (back then it was Ceylon..)
IMO we do not have a separate/ specialized OHS act like in Aus..
"In Australia, occupational health and safety is governed by the Work Health and Safety (WHS) Act 2011 or the Occupational Health and Safety (OHS) Act 2004 in Victoria. These laws impose duties on employers and workers to eliminate or minimize risks, and to ensure workplaces are safe and without risks to health". - sources: legislation.gov.au, Worksafe
The Sri Lankan Factories Ordinance No. 45 of 1942 and the Australian Work Health and Safety (WHS) Act 2011 represent two vastly different eras and philosophies of workplace regulation: a prescriptive, factory-centric colonial-era statute versus a modern, harmonized, risk-management framework covering all work environments. -Sources: LinkedIn and 3cironline.edu.au