Rules for gassing up friend’s vehicle Published Aug. 20, 2007 SPANGDAHLEM AIR BASE, Germany -- Persons wishing to purchase rationed tax and duty free fuel for vehicles that are not registered to them, have to obtain written permission from the vehicle owner. As outlined in Retail Sales of Motor Fuel to Individuals in Germany, Army in Europe Regulation 600-17/USAFE Instruction 34-106; individuals violating this publication may be subject to: suspension or loss of authorization to purchase tax and duty free motor fuel in Germany, prosecution under the Uniform Code of Military Justice and civilian employment disciplinary action under applicable regulatory guidance. For more information, visit https://www.aeaim.hqusareur.army.mil/library/reg/pdf/aer600-17.pdf.