What does OAOO stand for?

MLA style: "OAOO." Acronym Finder . 2012. AcronymFinder.com 1 Jun. 2012 http://www.acronymfinder.com/Once-and-Only-Once-(OAOO).html
Chicago style: Acronym Finder . S.v. "OAOO." Retrieved June 1 2012 from http://www.acronymfinder.com/Once-and-Only-Once-(OAOO).html
APA style: OAOO. (n.d.) Acronym Finder. (2012). Retrieved June 1 2012 from http://www.acronymfinder.com/Once-and-Only-Once-(OAOO).html

Once and Only Once

This definition appears very rarely and is found in the following Acronym Finder categories:

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Owned and Operated Oklahoma Airport Operators Association (est. 1983) Oregon Athletic Officials Association (high school sports) Outfitters Association of America Operations Analysis Office Air Force Operations Analysis Office, Air Force Logistics Command Occupational Access and Opportunity Commission (Florida Department of Education) Older Adult Opportunity Center (various universities) Otsego Area Occupational Center (vocational school; Stamford, NY) On And Off Instruments		Older Adult Outpatient Program (San Francisco, CA) Otley Action for Older People (UK) l'Oreal Paris Observe, Anticipate and Plan (driving safety) Occupational Aptitude Patterns Ocean Assessment Program (US NOAA) Oceanic Automation Program Off-Axis Parabola (geometry) Offset Aimpoint Offshore Assembly Provisions