Personnel certification in line with NS 9600 is divided into two classes. Class A and Class B.
Class A has 4 levels:
Class A is intended for advanced structures. A Class A RAT team should be able to perform all types of rope access techniques and rescues. Personnel working in the Oil & Gas Sector must be certified in Class A.
Class B has 2 levels:
Class B is intended for simple rope access techniques and rescues on structures with no obstacles.