MIL-STD-1548E, DEPARTMENT OF DEFENSE STANDARD PRACTICE: INTO-PLANE SERVICING OF FUELS AT COMMERCIAL AIRPORTS (15 DEC 2003)., This standard establishes two types of standard practices for into-plane servicing of fuels atcommercial airports. Classification of into-plane servicing is as follows:Type I Into-Plane Refueling Guidance per ATA Specification 103,Standard For Jet Fuel Quality Control at Airports.Type II Into-Plane Refueling Guidance as per IATA's Guidelines for AviationFuel Quality Control and Operating Procedures for Joint Into-PlaneFueling Services (JIG).