There are over 70 separate pays, allowances or benefits of one type or another that make up the military compensation system.
Personnel engaged in flying duty as a non-crew member, parachute jumping, explosive demolition, handling toxic fuel, flight deck duty, experimental stress duty, etc. earns $150 per month for Hazardous Duty Pay. One exception to the $150 per month for parachute jumping, is authority to pay $225 per month for HALO jumps.
Members meeting the performance requirements for more than one type of hazardous duty pay during the same period are entitled to receive payment for a maximum of two types of hazardous duty pay provided they were assigned to a unit whose mission requires the performance of both types of hazardous duty involved.
Generally questions about pay should be answered as listed under Pay Records. Questions about Hazardous Duty Areas and Combat Zone tax status are decisions made by the Internal Revenue Service. Refer the requester to IRS Publication 3, which may be downloaded from: http://www.irs.ustreas.gov/pub/irs-pdf/p3.pdf.