any current Federal Aviation Regulations (FARs). This decision was appealed to the full NTSB. In November 2014 the NTSB issued a ruling reversing the administrative law judge's decision and holding that model aircraft are legally considered "aircraft" at least for the purposes of 14 CFR 91.13, and remanded the case to the administrative judge to determine whether Pirker's actions constituted reckless operation. It remains unclear what other provisions of the Federal Aviation Regulations are applicable to model aircraft, but it is likely that every regulation applicable to "aircraft" generally would potentially apply under this standard. In June 2014 the Federal Aviation Administration (FAA) issued a notice of interpretation regarding the Special Rule for Model Aircraft in Section 336 of the FAA Modernization and Reform Act passed by Congress in February 2012, which exempted model aircraft meeting certain criteria from future FAA rulemaking. In this document, the FAA stated its position that, "Model aircraft that do not meet these statutory requirements are nonetheless unmanned aircraft, and as such, are subject to all existing FAA regulations, as well as future rulemaking action, and the FAA intends to apply its regulations to such unmanned aircraft." The notice of interpretation further stated that even model aircraft that do qualify for the Sec. 336 exemption are legally considered aircraft, and the FAA has authority to pursue enforcement actions against model aircraft operators who do not comply with certain provisions of Part 91 of the Federal Aviation Regulations, including the prohibition against careless and reckless operation of an aircraft in 14 CFR 91.13 and 14 CFR 91.113, which requires that "vigilance shall be maintained by each person operating an aircraft so as to see and avoid other aircraft." Because the FAA has not yet sought to enforce this regulation against unmanned aircraft operators, whether it applies to model aircraft and what actions are necessary for compliance are currently unknown. FAA pilot registration for both camera-bearing "small unmanned aircraft system" (sUAS) multirotor "drones" and recreationally-flown traditional radio-controlled aircraft was reinstated by the FAA as part of the National Defense Authorization Act for Fiscal Year 2018, requiring RC aeromodelers to register with the FAA for a $5.00 fee for a three-year registration period: the modeler is assigned a ten-character alphanumeric personal FAA registration code to be placed on their models' exterior surfaces no later than February 25, 2019 as part of the registration requirements, to be placed on