This excerpt taken from the HSY DEF 14A filed Mar 10, 2005.
Operation of the Board
Chairman The CEO serves as Chairman of the Board. This serves the Company well, and the independent directors have many opportunities to have a significant influence on the structure and functioning of the Board. However, the Board might determine that during periods of transition following the election of a new CEO or during other unusual circumstances, the CEO should not also serve as Chairman of the Board.