19.2.1 The maximum solar and ultraviolet radiation shall be defined for normal and abnormal
operating conditions. Ultraviolet radiation limits are to be set taking into account
areas of operation for the submarine.
19.2.2 The solar radiation defined shall take account of the immediate capability and
longer-term health of the embarked persons.
19.2.3 The submarine, systems, equipment and components that are required to
operate within an exposed environment in normal or abnormal operating conditions are
to be identified. They shall be able to operate with defined levels of solar
radiation or be fitted with suitable protection measures.