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Continue to ChatNew data models in the ACRIS subject AirportElevationUnitOfMeasurement, AirportFacility, AirportLocation, and CheckpointAreaLocation https://smartdatamodels.org/index.php/new-data-models-in-the-acris-subject-airportelevationunitofmeasurement-airportfacility-airportlocation-and-checkpointarealocation/