suspected hazardous area (SHA)

suspected aircraft damage

hazard area / hazardous area

confirmed hazardous area (CHA)

hazardous area

hazardous cargo

hazardous levels of NBC contamination

hazardous materials (HAZMAT)

medical hazardous waste management and disposal

hazardous situation

license for facilities engaged in the manufacture, storage, and use of explosives, hazardous chemicals or substances posing a fire / explosive hazard

hazardous chamber pressure

hazardous conditions

hazardous failure

Hazardous Materials Advisory Council

hazardous substance

hazardous weather

hazardous weather conditions

hazardous materials inspection drone

chemically hazardous substance

potential danger area (trouble area)

killing area / kill area

open area danger area

active combat area

air defense area

aircraft over the objective area phase

airspace control area

amphibious assault area

amphibious assault force landing area

amphibious objective area (AOA)

analysis of area of operations

anti-access and area denial (A2/AD)

anticyclone, high-pressure area