Section 160.171-7 - Approval procedures(a)General. An immersion suit is approved by the Coast Guard under the procedures in subpart 159.005 of this chapter.(b)Approval testing. Each approval test must be conducted in accordance with § 160.171-17 or § 160.171-19 .(c)Approval of child size and oversize adult suits. No child size or oversize adult sized suit will be approved unless the adult size of the suit has been approved.