Note 1 to paragraph (a)(1): An example of a commodity that as a result of development has properties peculiarly responsible for achieving or exceeding the controlled performance levels, functions, or characteristics in a USML category would be a swimmer delivery vehicle specially designed to dock with a submarine to provide submerged transport for swimmers or divers from submarines.
Note 2 to paragraph (b): For a defense article not to be specially designed on the basis of paragraph (b)(4) or (5) of this section, documents contemporaneous with its development, in their totality, must establish the elements of paragraph (b)(4) or (5). Such documents may include concept design information, marketing plans, declarations in patent applications, or contracts. Absent such documents, the commodity may not be excluded from being specially designed by either paragraph (b)(4) or (5).
Note 3 to paragraph (b): For the purpose of paragraphs (b)(4) and (5) of this section, "knowledge" includes not only the positive knowledge a circumstance exists or is substantially certain to occur, but also an awareness of a high probability of its existence or future occurrence. Such awareness is inferred from evidence of the conscious disregard of facts known to a person and is also inferred from a person's willful avoidance of facts.
22 C.F.R. §120.41