Class Notation R2 defines a service area restriction.
This notation is offered to vessels designed for a particular service. The notation is generally applicable to small vessels - normally less than 100 m in length.
adjustment of design loads based on the limited service area
the same safety level as for vessels operating without service area restrictions
may result in reduced building or conversion costs.
This notation indicates that the service area is restricted to a distance in nautical miles from the nearest harbour or safe anchorage in relation to the seasonal zones as given below:
Winter: 50
Summer: 100
Tropical: 200
The seasonal zones are as defined in the International Conference on Load Lines, 1966, Annex II.