Title Image

What is RINA?

The classification society Registro Italiano Navale – RINA – was established in 1861 in Genoa and united the regional fleets under a single flag to cover the risk of loss and damage to the hull and rigging of sailing vessels.


RINA SERVICES S.p.A. is the RINA company that delivers services of classification, certification, testing and inspection (TIC Services) to guarantee excellence to organisations in the marine, environment and energy, infrastructures, transport and logistics, quality and safety and agri-food sectors.


RINA is one of the founders of IACS (International Association of Classification Societies), that since 1968 makes a unique contribution to maritime safety and regulation through technical activities, compliance verification, research and development.

What is GREEN PLUS notation?

The voluntary notation based on an environmental performance index which covers all aspects of the vessel’s impact on the environment, including carbon emissions.


The class notation granted to new vessels which make a significant investment in design solutions, onboard equipment, and operational procedures which contribute to an improvement in environmental performance beyond the minimum levels required by international regulation on environmental protection.


The Green Plus Yacht Certification addresses twelve different pollution sources, and lists, for each, a set of operative and design solutions which can help prevent them. Each item is associated to a score, which adds up to the calculation of a ship environmental index, the value of which will be significant for the assignment of the GREEN PLUS YACHT certification.


  • Oil from Machinery Spaces
  • Sewage
  • Grey water
  • Garbage
  • Other sea pollution sources (ballast water, antifouling systems, etc)
  • Ozone-depleting Substances
  • Greenhouse gases and pollutants
  • NOx
  • Sox
  • Particulates
  • CO2
  • Yacht materials and building procedures

GREEN PLUS benefits

Benefits for the yacht builders:

  • Great flexibility in design choices, possibility to introduce highly innovative technologies.


Benefits for the owner and managers:

  • Great added value given by a prestigious “state of the art” environmental certification.
  • Operative cost savings thanks to adoption of consumption reduction solutions.


Benefits for the personnel on-board:

  • Detailed guidance on environmental on-board management.


Benefits for passengers and guests:

  • The guarantee to be sailing on the ultimate environmentally friendly yacht.

What is Comfort class notation?

Until only a few years ago there was very little demand for formal analysis of noise and vibration levels on any kind of ship, and no demand for special notations to recognize high standards. But today owners of all kinds of ships are seeking higher standards of comfort for both crew and passengers.


A noise and vibration design prognosis allows the required countermeasures to be designed in at an early stage. Modelling and measurement support the numerical predictions which all feed back into the construction. When full-scale measurements verify that the desired noise and vibration limit levels are respected, the additional class notations can be issued.


COMF (Y) – Improvement of on-board comfort by reducing noise and vibration.

  • Measurements on board
  • Optimization by advanced modal analysis


The requirements for the notation are the result of the experience gained in years of application and of research activities. RINA’s requirements meet or exceed international standards set by IMO. The comfort for crew notation in particular not only guarantees compliance with current European regulations for Health and Safety at work, but keeps pace with forthcoming more restrictive laws which will become effective in this field.


However RINA sets higher standards of noise control for top passenger accommodation


Benefits for yacht builders:

  • Identify critical areas that can be addressed in a timely manner, thereby reducing the risk of delay during construction
  • Build to a higher standard and deliver a yacht with added value
  • Have the attained standard assessed by a third party


Benefits for yacht owners:

  • Demonstrate commitment to quality
  • Attain customer and crew satisfaction
  • Comply with specific national regulations for crew accommodation health and habitability