Glossary

Defined terms and acronyms used across the directives — filter by letter, type or office.

Search results: 3614

		OPI
Operational Emergency (OST)	Definition	NA - National Nuclear Security Administration
Operational Environment	Definition	PM - Office of Project Management Oversight and Assessments
Operational Evaluation	Definition	EH - Office of Environment, Health, Safety and Security
Operational Readiness Review	Acronym
Operational Readiness Review	Definition	AU - Office of Environment, Health, Safety and Security, PM - Office of Project Management Oversight and Assessments
Operational Readiness Review/Assessment	Definition	AU - Office of Environment, Health, Safety and Security
Operational Technology	Definition	IM - Office of the Chief Information Officer
Operations and Maintenance (O&M)	Definition	PM - Office of Project Management Oversight and Assessments
Operations Manager	Definition	EH - Office of Environment, Health, Safety and Security
Operations Security	Acronym
Operations-based Exercises	Definition	NA - National Nuclear Security Administration
Operator Aids	Definition	AU - Office of Environment, Health, Safety and Security
Operator Training	Definition	PM - Office of Project Management Oversight and Assessments
Operators	Definition	EH - Office of Environment, Health, Safety and Security
Opportunities for Improvement	Definition	EA - Office of Independent Enterprise Assessment
Opportunity	Definition	PM - Office of Project Management Oversight and Assessments
Optimization Methodology	Definition	AU - Office of Environment, Health, Safety and Security
Optimum Period	Definition	MA - Office of Management
Oral Board	Definition	AU - Office of Environment, Health, Safety and Security
Oral Evaluation	Definition	AU - Office of Environment, Health, Safety and Security
Order	Acronym
Order-of-Magnitude Estimate	Definition	PM - Office of Project Management Oversight and Assessments
Orders of Succession	Definition	NA - National Nuclear Security Administration
Organization Breakdown Structure	Acronym
Organization-Specific Qualification Standard	Definition	AU - Office of Environment, Health, Safety and Security

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