Section 79(2) in The Navy (Pay And Allowances) Regulations, 1966
(2)Such allowance shall be admissible only to those who are likely to complete eighteen months in the appointments specified hereunder:(a)Secretary to the Chief of the Naval Staff;(b)Flag Lieutenant to the Chief of the Naval Staff.Tropical Working Dress for Air Crew Officers and Officers Employed on Engineering, Radio, Radar and Electrical Duties
