Presentation Title
Permit-Required Confined Space Hazards: Control v. Isolation
About the Presentation

Prior to workers entering a confined space, employers or competent persons conduct a systematic hazard assessment. This assessment identifies and evaluates atmospheric, engulfment, physical, electro-mechanical, or other “recognized” health or safety hazards. For safe entry, employers either “control” the hazard under a written permit or alternate entry procedures, or “isolate” and eliminating the hazard entering under non-permit status. Control or isolation techniques selected are always situationally unique and hazard specific. Persons responsible for confined space entry must understand control is not synonymous with isolation or elimination, and either ineffective controls or inadequate isolation techniques can place workers at unnecessary risk. The goals of this presentation are for attendees to understand the differences between control and isolation and recognize the conceptual interrelationship between OSHA’s confined space and lockout/tagout standards and the influence of ANSI Z117.1-2016 “Safety Requirements for Entering Confined Spaces” upon control or isolation of permit-space hazards.


John Mulroy , Instructor and PA OSHA Consultation Safety & Health Consultant,  Indiana University of Pennsylvania    

Presenter Biography

John Mulroy is a full-time instructor in the Safety Sciences department and a Safety & Health Consultant with the PA OSHA Consultation office at Indiana University of Pennsylvania. He is a doctoral student, board-certified safety professional, received a BA in English and a BS in Safety Sciences from IUP, and received a master’s degree in environmental management from Duquesne University in 2005. John is a professional member of the American Society of Safety Engineers with over 20 years of environmental, safety, and health compliance experience working for Westinghouse Electric, Curtiss-Wright Flow Control, Edison Mission Energy, NRG Energy, and IUP’s OSHA Consultation office. His areas of specialty include occupational safety compliance, process safety, emergency response, construction safety, environmental compliance, and quality assurance engineering.