Definition
REFINED HAZARD AREA (RHA)
Used by ATC. Airspace that is defined and distributed after a failure of a launch or reentry operation to provide a more concise depiction of the hazard location than a Contingency Hazard Area.
- See: AIRCRAFT HAZARD AREA
- See: CONTINGENCY HAZARD AREA
- See: TRANSITIONAL HAZARD AREA
Source: FAA Pilot/Controller Glossary (verbatim from the Federal Aviation Regulations).