Protecting vital sea lines of communication: A study of the proposed designation of the Straits of Malacca and Singapore as a particularly sensitive sea area

► The Straits of Malacca and Singapore are important shipping routes. ► Heavy shipping has adversely affect the marine environment of the Straits. ► Proposals for Particularly Sensitive Sea Area (PSSA) designation. ► Comparison with the Torres Strait. ► The Straits of Malacca and Singapore may possess the criteria needed for PSSA designation. ► It is important to ensure sustainable development is promoted in the Straits.