CIVIL AVIATION SAFETY REGULATIONS 1998 - REG 139.180 Determination that certain proposed objects, structures or emissions sources are a hazard to aircraft operations [100%]
(From Commonwealth Consolidated Regulations; 1 January 1998; 5 KB)
CIVIL AVIATION SAFETY REGULATIONS 1998 - REG 139.185 Kinds of objects, structures or emissions sources that may be hazards [50%]
(From Commonwealth Consolidated Regulations; 1 January 1998; 7 KB)