Kaplan Kirsch & Rockwell lawyers represent clients in the structuring of airport rates and charges programs, negotiations with carriers and fixed base operators, and the structuring of financial arrangements with neighboring governments. The firm's lawyers have worked both inside and outside of government to help formulate federal policies, legislation, and regulations on Passenger Facility Charges (PFCs), permitted uses of airport revenues, and airport rates and charges. The firm's lawyers have litigated state and federal cases and administrative proceedings on rates and charges programs, revenue diversion, PFCs and local taxation issues, and have negotiated agreements and litigated disputes with airlines and fixed-base operators over lease and use agreements and rates and charges. For example, Kaplan Kirsch & Rockwell lawyers have represented the affected airport or Airports Council International - North America in every DOT fast-track rate case that has proceeded to a hearing. The firm's lawyers have also worked with airports to resolve Part 16 proceedings with FAA concerning landing fees, settled informal investigations concerning revenue diversion, and helped obtain PFC approvals for airport projects in the face of vehement objection by air carriers or other parties.