The Sillitoe pattern may be composed of several different colours and numbers of rows depending on local customs, but when incorporated into uniforms or vehicle livery, it serves to uniquely identify emergency services personnel to the public.
St John Ambulance uses a white and green pattern on their vehicles and operational uniforms in both South Australia and Victoria.
[9] From 1972, within the United Kingdom, the original black and white Scottish version began to rapidly spread throughout England and Wales and it is now used by all police forces in Great Britain.
[10][11] The Hammersmith and Fulham Parks Constabulary, who are run by the local authority, also originally used red and white chequers in line with the corporate colours of the council but they reverted to the standard type.
The Royal Parks Constabulary Scotland were a separate force to their aforementioned English counterparts and they also used green and white chequers.
[13] While the Sillitoe tartan is not used in the dress uniform of the Police Service of Northern Ireland, it does appear on the force's baseball caps, motorcycle helmets and high-visibility jackets.
Many other departments in the United States and Canada, while lacking the tartan on their cap bands, have begun using two-row reflective versions as part of the design on high-visibility outer garments and vests.
[19][20][21] The Ajuntament de Sóller and Barcelona (Guàrdia Urbana) local Policía both use two-tiered blue and white versions.
[22][23] The usage of Sillitoe tartan is typically rare in Canada (except in Quebec) and is usually limited to auxiliary police services.
[25] Most of the Quebec police forces use blue-and-white Sillitoe Tartan on their reflective jackets, which feature a similar design to those in the UK.
The Hong Kong Police Force use, to a limited extent, both two and three-tiered blue and white Sillitoe tartan schemes (Battenburg markings) on traffic vehicles.
[35] The Icelandic Police wear a black-and-white Sillitoe tartan Pattern on shirt and trouser cuffs, lower hems of jackets and on the base of side hats and baseball caps.
The Royal Malaysia Police use a gold and blue Sillitoe tartan on some patrol vehicles and full pattern on some tow trucks, but not on motorbikes, uniforms, or insignia.