For what it's worth, the P42 has a CE rating of A, meeting a minimum set of standards as set forth by the European Union. Here is what the ratings mean:
A. OCEAN: Designed for extended voyages where conditions may
exceed wind force 8 (Beaufort scale) and significant wave heights
of 4 m and above but excluding abnormal conditions, and vessels
largely self-sufficient.
B. OFFSHORE: Designed for offshore voyages where conditions up
to, and including, wind force 8 and significant wave heights up to,
and including, 4 m may be experienced.
C. INSHORE: Designed for voyages in coastal waters, large bays,
estuaries, lakes and rivers where conditions up to, and including,
wind force 6 and significant wave heights up to, and including, 2
m may be experienced.
D. SHELTERED WATERS: Designed for voyages on sheltered
coastal waters, small bays, small lakes, rivers and canals when
conditions up to, and including, wind force 4 and significant
wave heights up to, and including, 0,3 m may be experienced,
with occasional waves of 0,5 m maximum height, for example
from passing vessels.
Craft in each Category must be designed and constructed to withstand
these parameters in respect of stability, buoyancy, and other relevant
essential requirements listed in Annex I, and to have good handling
characteristics.