 Each of these regional bases are similarly organised to the Neighbourhood Police Centres of the SPF's Land Divisions and conduct patrols and checks within their respective maritime sectors of Singapore's territorial waters.The entire PCG fleet is organised into three main squadrons.The Interceptor Squadron, located at both the Lim Chu Kang and Loyang regional bases, is outfitted with PC-class high-speed patrol-craft able to control, track and prevent the movement of illegal immigrants and intruding vessels all along the Straits of Johor.