The following paper reviews Cumulative Leakage Index requirements and considers leakage program organizational methods and procedures as they relate to large systems. Both ground-based cumulative Leakage Index formulas were analyzed revealing the lack of any system size allowances. Flyover advantages and limitations were compared with system leakage strategy. Its intent is to emphasize the need for immediate planning which will ease the ordeal of passing the first FCC filing due July 1, 1990. Ultimate failure may result in a severe loss of channels.