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O&M - operations and maintenance (programs)
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OASDHI - Old Age, Survivors, Disability, and Health Insurance (Act) of 1935
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OCA - outstanding claims account
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OCIP - owner controlled insurance program
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OD - occupational disease
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OECD - Organization for Economic Cooperation and Development
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OFA - Organized Flying Adjusters
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OGP - original gross premium
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OI - outage insurance
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OIS - operating information system
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OOP - out-of-pocket limit
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OPIC - Overseas Private Investment Corporation
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OPPI - owners protective professional indemnity
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OSHA - Occupational Safety and Health Act of 1970
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OSLR - outstanding loss reserves
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OTC - other than collision