and the actual rank of warrant officer was never created. Indian equivalents were viceroy's commissioned officers. Ireland Irish Naval Service Malaysia In the Malaysian Armed Forces, warrant officers () are the highest ranks for non commissioned officers. New Zealand The New Zealand Army usage is the same as the Australian Army, having two ranks. The warrant officer class 2 (WO2), addressed as "sergeant major", and the warrant officer class 1 (WO1), addressed as "sir" or "ma'am". There are also appointments such as company and squadron sergeant major (CSM and SSM) which are usually WO2 positions and regimental sergeant major (RSM), which are usually WO1 positions. The highest ranking WO1 holds the position of Sergeant Major of the Army (SMA). In certain uniforms, WO2s wear black shoes, the same as the enlisted ranks, whilst WO1s wear brown shoes, in common with commissioned officers. The exception to this are WO1s of the Royal New Zealand Armoured Corps (RNZAC), who wear black shoes. The Royal New Zealand Navy has a single warrant officer rank, addressed as "sir" or "ma'am". This rank is equivalent to the Army WO1. The Royal New Zealand Air Force also has a single warrant officer rank, equivalent to the Navy warrant officer, and the Army warrant officer class 1 (WO1). A warrant officer in the RNZAF is addressed as "sir" or "ma'am". Previously an aircrew warrant officer was known as master aircrew; however this rank and designation is no longer used. The RNZAF also has a post of Warrant Officer of the Air Force, the most senior warrant officer position in the RNZAF. Singapore Boys' Brigade The rank of warrant officer is the highest rank a Boys' Brigade boy can attain in secondary school. National Civil Defence Cadet Corps The rank of warrant officer is given to selected non-commissioned officers in National Civil Defence Cadet Corps units. It is above the rank of staff sergeant, and below the rank of cadet lieutenant. It is the highest rank a cadet can attain in the NCDCC while they are in secondary school. The rank insignia is one point-up chevron, a Singapore coat of arms, and a garland below. Singapore Armed Forces In the Singapore Armed Forces, warrant officers begin as third warrant officers (3WO), previously starting at the rank of second warrant officer, abbreviated differently as WO2 instead. This rank is given to former specialists who have attained the rank of