3.1 As of the date of the development of this
Standard, corrosion resistant "steel" is the only recognized possible
means for corrosion protection or utilization of corrosion resistant
material to maintain the required structural integrity for 25 years,
as an alternative to protective coating. If corrosion resistant steel
is to be used as alternative means, it shall comply with the Performance
Standard for corrosion resistant steel as set out in the annex.
3.2 When a novel type of alternative means to
which the provisions in the annex are not applicable has been developed,
and recognized by the Organization, a specific performance standard
including testing procedure(s) should be developed by the Organization
by adding a new annex to this Standard, taking into account experience
gained through field tests for the novel prototype alternative conducted
in accordance with SOLAS regulation II-1/3-11.4.