MIL STD- Standard General Requirements for Electronic Equipment

Requirements (Commercial off-the-shelf (COTS) equipment)

Commercial off-the-shelf equipment that has been listed or certified by an appropriate commercial standard by a Nationally Recognized Test Laboratory (NRTL) (e.g.: Underwriters Laboratories (UL), Canadian Standards Association (CSA), or TUV Rheinland (TUV)) shall be considered as having met the provision of this requirement and from a product safety perspective, shall be acceptable for use without further modification. Modified COTS equipment which has any modification to the primary power voltage (above 42.4 volts) areas requires re-certification by a NRTL.