This recommended practice establishes uniform procedures for the control, determination, and documentation of mass properties of space vehicles and their subsystems and components. This document is derived from MIL-STD-1811 to serve as a continuing, maintained, industry recommended practice. As such, it contains some sections that are applicable primarily to United States Government space vehicle development and acquisition programs. Other sections are more general in nature, describing terminology, processes, and procedures that are generally accepted in the industry, and reflect sound mass properties engineering practices in the development and production of space vehicles. This recommended practice is, therefore, applicable for mass properties control of all space vehicle development and acquisition, government and private.