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This document specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged) boats. The flotation characteristics of craft susceptible to swamping are also encompassed.

The evaluation of stability and buoyancy properties using this document will enable the boat to be assigned to a design category (C or D) appropriate to its design and maximum load.

This document is applicable to boats of hull length less than 6 m, whether propelled by human or mechanical power, except habitable sailing multihulls. Boats of hull length less than 6 m which are fitted with a full deck and quick-draining cockpit(s) complying with Ïã¸ÛÁùºÏ²Ê¿ª½± 11812 can alternatively be assessed using Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý12217‑1 or Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý12217‑2 (for non-sailing and sailing boats, respectively), in which case higher design categories can be assigned.

In relation to habitable multihulls, this document includes assessment of susceptibility to inversion, definition of viable means of escape and requirements for inverted flotation.

This document excludes:

—ÌýÌýÌý inflatable and rigid-inflatable boats covered by the Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý6185Ìýseries, except for references made in the Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý6185Ìýseries to specific clauses of the Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý12217Ìýseries;

—ÌýÌýÌý personal watercraft covered by Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý13590 and other similar powered craft;

—ÌýÌýÌý aquatic toys;

—ÌýÌýÌý canoes and kayaks;

—ÌýÌýÌý gondolas and pedalos;

—ÌýÌýÌý sailing surfboards;

—ÌýÌýÌý surfboards, including powered surfboards;

—ÌýÌýÌý hydrofoils, foil stabilized boats and hovercraft when not operating in the displacement mode; and

—ÌýÌýÌý submersibles.

NOTEÌýÌýÌýÌýÌýÌý Displacement mode means that the boat is only supported by hydrostatic forces.

It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations, which need to be separately considered if appropriate.