; (B) the safety and reliability of highly automated small unmanned aircraft system design, including technological capabilities and operational limitations to mitigate such risks; and (C) the competencies and compliance programs of manufacturers, operators, and companies that both manufacture and operate small unmanned aircraft systems and components. (3) Small UAS air carrier classification The Secretary shall develop a classification system for small unmanned aircraft systems air carriers to establish economic authority for the carriage of property by small unmanned aircraft systems for compensation or hire. Such classification shall only require— (A) registration with the Department of Transportation; and (B) a valid small UAS air carrier certificate as described in paragraph (1). 45511. Micro UAS operations (a) In general Not later than 60 days after the date of enactment of this section, the Administrator of the Federal Aviation Administration shall charter an aviation rulemaking advisory committee to develop recommendations for regulations under which any person may operate a micro unmanned aircraft system, the aircraft component of which weighs 4.4 pounds or less, including payload, without the person operating the system being required to pass any airman certification requirement, including any requirements under section 44703, part 61 of title 14, Code of Federal Regulations, or any other rule or regulation relating to airman certification. (b) Considerations In developing recommendations for the operation of micro unmanned aircraft systems under subsection (a), the members of the aviation rulemaking advisory committee shall consider rules for operation of such systems— (1) at an altitude of less than 400 feet above ground level; (2) with an airspeed of not greater than 40 knots; (3) within the visual line of sight of the operator; (4) during the hours between sunrise and sunset