The definitions in section 40102(a) of title 49 apply to this section.
A decision to remit or mitigate a civil penalty under this section is final. When libel proceedings are pending during a proceeding to remit or mitigate a penalty, the appropriate Secretary shall notify the Attorney General of the remission or mitigation proceeding.
A civil penalty under this section may be collected by bringing a civil action against the person subject to the penalty, a civil action in rem against an aircraft subject to a lien for a penalty, or both. The action shall conform as nearly as practicable to a civil action in admiralty, regardless of the place an aircraft in a civil action in rem is seized. However, a party may demand a trial by jury of an issue of fact if the value of the matter in controversy is more than $20. An issue of fact tried by jury may be reexamined only under common law rules.
Necessary amounts may be appropriated to allow the head of a department, agency, or instrumentality of the Government to acquire space at a public airport (as defined in section 47102 of title 49) when the head decides the space is necessary to carry out inspections, clearance, collection of taxes or duties, or a similar responsibility of the head, related to transporting passengers or property in air commerce. The head must consult with the Secretary of Transportation before making a decision on space.