The MIL-STD-704, titled "Aircraft Electric Power Characteristics," is a critical compliance document for the U.S. Air Force and other defense and aerospace industries. It governs the characteristics and standardization of electric power in aircraft, including both AC and DC power systems. The document addresses voltage spikes, a form of electromagnetic interference, and their control according to the electromagnetic specification, MIL-E-6051. It also outlines the requirements for spike emission and susceptibility in subsystems and equipment. The MIL-STD-704A Notice 3, issued on 11 April 1973, includes specific changes to paragraphs related to voltage spikes and their control. A common search question about this document might be "What are the requirements for controlling voltage spikes in aircraft according to MIL-STD-704?"