All required documents and publications might have to be produced and GMDSS operators may be required to demonstrate equipment competencies.

Licensed GMDSS operators may not be required to demonstrate equipment competencies but all required equipment must be fully operational.

All required equipment must be fully operational and any required publications that are not current must be on order.

GMDSS operators may be required to demonstrate equipment competencies and any of required equipment that is not fully operational can be repaired at the next port of call as long as there is functional duplication.