Column 1	Column 2	Column 3	Column 4	
Competence	Knowledge, understanding and proficiency	Methods for 
demonstrating 
competence	Criteria for 
evaluating competence	
Use of radar and ARPA to maintain safety of navigation (continued)	Use, including:

.1   range and bearing; course and speed of other ships; time and distance of closest approach
of crossing, meeting overtaking ships

.2   identification of critical echoes; detecting course and speed changes of other ships; effect of changes in own ship’s course or speed or both

.3   application of the International Regulations for Preventing Collisions at Sea,
1972, as amended

.4   plotting techniques and relative- and true-motion concepts

.5   parallel indexing

Principal types of ARPA, their display characteristics, performance standards and the dangers of over-reliance on ARPA

Ability to operate and to interpret and analyse information obtained from ARPA, including:

.1   system performance and accuracy, tracking capabilities and limitations, and
processing delays

.2   use of operational warnings and system tests

.3   methods of target acquisition and their limitations		Adjustments made to the ship’s course and speed maintain safety of navigation

Communication is clear, concise and acknowledged at all times in a seamanlike manner

Manoeuvring signals are made at the appropriate time and are in accordance with the International Regulations
for Preventing Collisions at Sea, 1972, as amended