What does OCA stand for?

The list of OCA abbreviation meanings.

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6
Oceanic Control Area(Aviation, Technology)
3
Obstacle Clearance Altitude(Aviation, Technology)
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APASmart Define. (2017). oca. Retrieved September 24, 2026, from http://smartdefine.org/oca/abbreviations/f/aviation
ChicagoSmart Define. 2017. "oca" http://smartdefine.org/oca/abbreviations/f/aviation (accessed September 24, 2026).
HarvardSmart Define 2017, oca, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/oca/abbreviations/f/aviation>.
MLASmart Define. "oca" 30 October 2017. Web. 24 September 2026. <http://smartdefine.org/oca/abbreviations/f/aviation>