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Introduction: Health, safety and enviro-nment (HSE) is considered as an important matter in oil refining companies and also as one of the key priorities for the companies. Hence, this research employed the HSE culture ladder in order to assess the HSE culture in the Shahid Tondgooyan oil refi-ning company of Tehran. Materials & Methods: Current research was a descriptive-analytical, sectional and practical study. The population under study included all the administrative and oper-ative officials of Shahid Tondgooyan oil refining company of Tehran. With the ass-istance of the professors and statistical consultants, as well as the type of the study, a check list of the HSE culture ladder was completed and analyzed by the statistical consultants. The mentioned check list was gathered after intensive literature review. This culture model has been categorized into five levels with unique characteristics from pathological to creative ones. Findings: According to the results and self-analysis of the HSE culture by using of the culture ladder model, Shahid Tondgooyan oil refining company of Tehran was in the proactive level. By observing some of the noted factors, it could be reached into the proactive level, and then enter to the creative level. Discussion & Conclusion: With regarding to the obtained results, necessary measures must be taken to progress the level of HSE culture in the refinery area, as well as to progress the operations of the workers and the management’s attitude.

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Introduction: Nowadays, attention to opportunities andthreatsinthe field ofhealthcare and culminating in thehospitals facedwith uncertaintyandrisks wasessentialandmanage the risks involvedin thesecentersis very important. The aimof thisstudy is HSErisk assessmentmodelbasedsystemsinhospitalsmartyrBeheshtiUniversityof Medical Sciences, approaches thatcan becontrolled.

 Materials & methods: In thisstudy,weidentifythe principalrisksandsetstandards formeasuring andprovidingcomprehensive questionnaire. Theanalytical Network predictionbased onfuzzy logic(FANP)was used for priority of risk.

Findings:Theriskprioritynumber isused inhospitals,Biological factorsaffectinghumanRPNequal to32.85 was the highest risk and Physical factorsaffectinghumanisequal to11.68 was the least HSE risk of  hospital.Also the result showed that priority of the risk factors affecting the company's reputation was high.

Discussion & Conclusions: The results showed thatHospital managementshould beincontrol ofchemical and biologicalagentstoadopta specificmanagement plans. Also, according tothe results, it is clear thatit is necessary toconsider themanagementof workplaceergonomicsprogramhas beenandcontrol measureswithinthescopedefined.