Installation of a gas tank on a PPP vessel

Good afternoon! The “Rules of the Russian River Register” do not prohibit the installation of gas holders on river, mixed or sea vessels. But paragraph 5 of the "Rules ..." states that "... for ships, checks are made for the availability of agreed technical documentation, certificates for materials and components, acts of the organization’s technical control service ...". This can be regarded as the fact that your gas tank must have the necessary technical documentation.

Which one? We turn to the document with the long title Decree of the Government of the Russian Federation of July 30, 2014 No. 401 (as amended on July 6, 2018) “On the Federal Service for Ecological, Technological and Nuclear Supervision”. Clause 1 of the document states that Rostekhnadzor does not perform the functions of monitoring and supervising domestic installations, i.e. fill out the tank is not necessary. Meanwhile, according to GOST 5172-63, SP 62.13330.2011, you, as the owner, are obliged to ensure the safe operation of the gas tank.

It is not necessary to enter information about the installed gas tank into the certificate of the River Register, because this requirement is not in the "Rules for the Inspection of Ships in Operation" (POSE) and other regulatory documents.