46 CFR § 176.302 - Certificates and permits.

The Certificate of Inspection and any SOLAS Certificates must be posted under glass or other suitable transparent material, such that all pages are visible, in a conspicuous place on the vessel where observation by passengers is likely. If posting is impracticable, such as in an open boat, the certificates must be kept on board in a weathertight container readily available for use by the crew and display to passengers and others on request.

[CGD 85–080, 61 FR 953, Jan. 10, 1996, as amended by CGD 97–057, 62 FR 51049, Sept. 30, 1997]