; (D) trends in use, enforcement, or incidents involving unmanned aircraft systems; (E) ensuring, to the greatest extent practicable, that updates to the operational parameters correspond to, and leverage, advances in technology; and (F) equipage requirements that facilitate safe, efficient, and secure operations and further integrate all unmanned aircraft into the National Airspace System. (3) Savings clause Nothing in this subsection shall be construed as expanding the authority of the Administrator to require a person operating an unmanned aircraft under this section to seek permissive authority of the Administrator, beyond that required in subsection (a) of this section, prior to operation in the National Airspace System. (e) Statutory construction Nothing in this section shall be construed to limit the authority of the Administrator to pursue an enforcement action against a person operating any unmanned aircraft who endangers the safety of the National Airspace System. (f) Exceptions Nothing in this section prohibits the Administrator from promulgating rules generally applicable to unmanned aircraft, including those unmanned aircraft eligible for the exception set forth in this section, relating to— (1) updates to the operational parameters for unmanned aircraft in subsection (a); (2) the registration and marking of unmanned aircraft; (3) the standards for remotely identifying owners and operators of unmanned aircraft systems and associated unmanned aircraft