O&M - operations and maintenance (programs)

OASDHI - Old Age, Survivors, Disability, and Health Insurance (Act) of 1935

OCA - outstanding claims account

OCIP - owner controlled insurance program

OCP - owners and contractors protective (insurance)

OCSLA - Outer Continental Shelf Lands Act of 1953

OD - occupational disease

OECD - Organization for Economic Cooperation and Development

OEE - operators extra expense (insurance)

OFA - Organized Flying Adjusters

OGP - original gross premium

OI - outage insurance

OIS - operating information system

OL&T - owners, landlords, and tenants (insurance)

OMCS - Office of Motor Carrier Standards

OOP - out-of-pocket limit

OPIC - Overseas Private Investment Corporation

OPPI - owners protective professional indemnity

ORFS - operational risk financing securities

ORM - operational risk management

OSHA - Occupational Safety and Health Act of 1970

OSHA - Occupational Safety and Health Administration

OSLR - outstanding loss reserves

OTC - other than collision