1 The Maritime Safety Committee, at its sixty-sixth session (28 May to 6
June 1996), approved the Design guidelines and operational recommendations for
ventilation systems in ro-ro cargo spaces (MSC/Circ.729).
2 The Sub-Committee on Ship Systems and Equipment, at its second session (23 to 27 March
2015), revised the aforementioned guidelines, taking into account advances in technology
related to air quality management for ventilation of closed vehicle spaces, closed ro-ro
and special category spaces.
3 The Maritime Safety Committee, at its ninety-fifth session (3 to 12 June 2015), after
having considered the above proposal by the Sub-Committee on Ship Systems and Equipment,
at its second session, approved the Revised design guidelines and operational
recommendations for ventilation systems in ro-ro cargo spaces, as set out in the
annex.
4 Member Governments are invited to bring the Revised design guidelines to the attention
of ship designers, shipyards, shipowners and other parties concerned. Member Governments
are also invited to apply the revised design guidelines to all ships on a voluntary
basis.
5 This circular supersedes MSC/Circ.729.