- Based on their appointed ranks, civil servants are classified into: Class A including those appointed to the senior-specialist or equivalent rank; Class B including those appointed to the principal-specialist or equivalent rank; Class C including those appointed to the Specialist or equivalent rank; Class D including those appointed to the technician or equivalent rank or employee rank. - Based on working positions, civil servants are classified into: Civil servants holding leading or managerial posts; Civil servants not holding leading or managerial posts.