RINA amends Parts A and F of the Rules for the Classification of Ships

Classification Society RINA has published the Amendments to Parts A and F of the "Rules for the Classification of Ships" (REP.1 and REP.6): new COMF-NOISE (DP) and COMF-VIB(DP) additional class notations.

This document was published on March 24th, 2023, and is effective from March 21st, 2023.

Comfort with regard to noise on board ships

The additional class notations COMF-NOISE: when the ship is in normal seagoing conditions - and COMF-NOISE (DP ) notation, - when the ship is in dynamic positioning conditions - are assigned in accordance with PtA, Ch1, Sec2, [6.7.2], is assigned to ships classed by the Society and complying with the requirements of this Section.

In the event that the ship undergoes modifications, refitting, or repairs that may affect its level of comfort, the maintenance of the notation is subject to the results of new measurements as deemed appropriate by the Society.

The notations is are completed by a letter A, B, or C which represents the merit level achieved for the assignment of the notation, the merit A corresponding to the lowest level of noise.

The notations COMF-NOISE and COMF-NOISE (DP) is are only assigned if at least merit level C is reached.

When the merit levels achieved for the passenger spaces (if any) and the crew spaces are different, the notation is completed by the suffix:

• PAX, for passenger spaces, and
• CREW, for crew spaces.

Comfort with regard to vibrations on board ships

The additional class notations COMF-VIB: when the ship is in normal seagoing conditions - and COMF-VIB (DP) notation, - when the ship is in dynamic positioning conditions - are assigned in accordance with PtA, Ch1, Sec2, [6.7.3] is assigned to ships classed by the Society and complying with the requirements of this Section.

In the event that the ship undergoes modifications, refitting, or repairs that may affect its level of comfort, the maintenance of the notation is subject to the results of new measurements as deemed appropriate by the Society.

The notations is are completed by a letter A, B, or C which represents the merit level achieved for the assignment of the notation, the merit A corresponding to the lowest level of vibration.

The notations COMF-VIB and COMF-VIB (DP) is are only assigned if at least merit level C is reached.

When the merit levels achieved for the passenger spaces (if any) and the crew spaces are different, the notation is completed by the suffix:

• PAX, for passenger spaces, and
• CREW, for crew spaces.

For more information, please see the document below (available only to subscribers):

RELEVANT DOCUMENTS:

Amendments to Parts A and F of the "Rules for the Classification of Ships" (REP.1 and REP.6): new COMF-NOISE (DP) and COMF-VIB(DP) additional class notations