; and (2) by inserting after subsection (e), the following new subsection: (f) Reapplications Except as provided in section 44710, any person whose certificate has been revoked by an order of the Administrator or the National Transportation Safety Board may reapply for a certificate at any time following the revocation. . (e) Appeal of suspension or termination of delegation Section 44702(d) of title 49, United States Code, is amended by adding at the end the following: Subsections (d), (e), and (f) of section 44709 shall apply to a rescission of a delegation under this subsection in the same manner as those subsections apply to an order of the Administrator or the National Transportation Safety Board under that section. . 3. Accountability for aircraft registration numbers The Administrator of the Federal Aviation Administration shall review the process of reserving aircraft registration numbers and enact appropriate changes to ensure the fair participation by the general public, including the implementation of readily available software to prevent any computer auto-fill systems from reserving aircraft registration numbers in bulk. 4. Mitigating the spread of aquatic invasive species by aircraft (a) In general Any person that holds a seaplane rating from the Administrator of the Federal Aviation Administration and successfully completes a free online education course on aquatic invasive species mitigation that is acceptable to the Secretary of the Interior may hold themselves out to the public as qualified to inspect aircraft for aquatic invasive species and to take action to mitigate the spread of aquatic invasive species. (b) No further regulatory or enforcement action Any person that is qualified under subsection (a) or whose aircraft is inspected by a person qualified under subsection (a) and subject to the mitigation described in subsection (a) shall not be subject to any further regulatory or enforcement action by any Federal, State, local, or Tribal government for any action related to aquatic invasive