Assistant Secretary of the Air Force (Energy, Installations & Environment)

The principal subordinate of the SAF/IE is the principal deputy assistant secretary of the air force (installations, environment and energy). Other major subordinates include: the deputy assistant secretary of the air force (installations) (SAF/IEI), the deputy assistant secretary of the air force (infrastructure, energy and environment) (SAF/IEE), and the deputy assistant secretary of the Air Force (operational energy, safety and occupational health) (SAF/IEN). == History ==

On August 13, 2001, the secretary of the air force eliminated the assistant secretary of the air force (manpower, reserve affairs, installations and environment) (SAF/MI), splitting it into two new posts: the assistant secretary of the air force (installations, environment and logistics) (SAF/IE) and the assistant secretary of the air force (manpower and reserve affairs) (SAF/MR). In mid-2014, the assistant secretary of the air force (installations, environment and logistics) was renamed to the assistant secretary of the air force (installations, environment and energy), and the abbreviation remained as SAF/IE. The renaming reflected the logistics function of the post that transferred to the assistant secretary of the air force (acquisition) (SAF/AQ). By early 2020, the post was renamed to the assistant secretary of the air force (energy, installations and environment), still retaining the abbreviation SAF/IE. ==List of assistant secretaries of the air force (energy, installations and environment) ==