; and (2) prior to the date of enactment of this Act. (k) Definitions In this section: (1) The term Lead Applicant means an eligible State, local or Tribal government that has submitted a timely application. (2) The term NAS means the low-altitude national airspace system. (3) The term UAS means unmanned aircraft system. 352. Part 107 transparency and technology improvements (a) Transparency Not later than 30 days after the date of enactment of this Act, the Administrator shall publish on the FAA website a representative sample of the safety justifications, offered by applicants for small unmanned aircraft system waivers and airspace authorizations, that have been approved by the Administration for each regulation waived or class of airspace authorized, except that any published justification shall not reveal proprietary or commercially sensitive information. (b) Technology improvements Not later than 90 days after the date of enactment of this Act, the Administrator shall revise the online waiver and certificates of authorization processes— (1) to provide real time confirmation that an application filed online has been received by the Administration; and (2) to provide an applicant with an opportunity to review the status of the applicant’s application. 353. Emergency exemption process (a) Sense of Congress It is the sense of Congress that the use of unmanned aircraft systems by civil and public operators— (1) is an increasingly important tool in response to a catastrophe, disaster, or other emergency; (2) helps facilitate emergency response operations, such as firefighting and search and rescue