Development and implementation were sped up drastically in reaction to the September 11, 2001 attacks and the bombing of the French oil tanker Limburg.
The U.S. Coast Guard, as the lead agency in the United States delegation to the IMO, advocated for the measure.
[6] The ISPS Code ensures that before the VSP is set in place that Vessel Security Assessments must be taken (VSA).
[7] The VSP must establish a number of important roles and steps to provide safety for the marine vessel.
[7] ISPS code requests that the VSP maintain an updated inventory of dangerous or hazardous goods and substances that are carried aboard the ship.
[7] The ISPS Code is implemented through chapter XI-2 Special measures to enhance maritime security in the International Convention for the Safety of Life at Sea (SOLAS).
[8] Ships that are prior to docking in port must immediately comply with all requirements for security levels that are determined by that contracting government.
[8][9] The alarm system works from the ship to administration ashore with transmitted signals that are communicated via satellite.
[8] The Regulation XI-2/8 establishes the main role of the Sea Master, which allows him to maintain order and conduct decisions for the sake of the personnel and security of the ship.
[11] MARSEC Level 3 will include additional security measures for an incident that is forthcoming or has already occurred that must be maintained for a limited time frame.
Part 104 contains vessel security regulations, including some provisions that apply to foreign ships in US waters.