; unmanned aircraft system The terms unmanned aircraft and unmanned aircraft system have the meanings given those terms in section 44801 of title 49, United States Code. (10) Unmanned aircraft take-off and landing zone The term unmanned aircraft take-off and landing zone means a structure, area of land or water, or other designation for use or intended to be used for the take-off or landing of civil unmanned aircraft systems operated by a commercial operator. 3. Federal Aviation Administration updates to navigable airspace (a) Definition (1) Immediate reaches of airspace definition Section 44801 of title 49, United States Code, is amended by adding at the end the following new paragraph: (14) Immediate reaches of airspace The term immediate reaches of airspace means, with respect to the operation of a civil unmanned aircraft system, any area within 200 feet above ground level. . (2) Navigable airspace definition Paragraph (32) of section 40102 of title 49, United States Code, is amended by adding at the end the following new sentence: In applying such term to the regulation of civil unmanned aircraft systems, such term shall not include the area within the immediate reaches of airspace (as defined in section 44801). . (b) Rulemaking (1) In general The Administrator shall conduct a rulemaking proceeding to update the definition of navigable airspace . (2) Consultation In conducting the rulemaking proceeding under paragraph (1), the Administrator shall consult with appropriate State, local, or Tribal government officials. (c) Designation requirement In conducting the rulemaking proceeding under subsection (b), the Administrator shall designate the area between 200 feet and 400 feet above ground level— (1) for use of civil unmanned aircraft systems under the exclusive authority of the Administrator