Section 150.517 - How are weight tests supervised?(a) The installation and periodic tests required by §§ 150.515 and 150.516 of this subpart must be supervised by a person familiar with lifeboats, davit-launched liferafts, rescue boats, and with the test procedures under those sections.(b) The person supervising the tests must attest, in writing, that the tests have been performed according to Coast Guard regulations. The operator must keep a copy of the supervisor's attesting statement on board the deepwater port, or in the operator's principal office in the case of an unmanned deepwater port, and make it available to the Sector Commander, or MSU Commander, with COTP and OCMI authority.USCG-1998-3884, 71 FR 57651 , Sept. 29, 2006, as amended by USCG-2013-0397, 78 FR 39182 , July 1, 2013