The research aimed to understand the current condition of PT.Power Plant Indonesia by evaluating its OHSAS 18001:2007 certification and its preparedness for ISO 45001:2018 certification.Method used for data analysis was gap analysis.Calculation in gap analysis used a checklist compiled according to the requirements listed in OHSAS 18001:2007.Results of the checklist showed Button that the general requirements clause averaged at 93.
88%, health & safety policy clause at 93.97%, planning clause at 92.91%, Stamping implementation & operation clause at 91.85%, checking clause at 92.32%, management review clause at 91.
85%, and overall score measured against OHSAS 18001:2007 at 92.85%.With the similarities between the points of clauses in OHSAS 18001:2007 and in ISO 45001, the large overall score when measured against OHSAS 18001:2007 signified that the company was prepared for ISO 45001:2018 certification.