Vessels sailing under the Saba Country Flag are required to have on board this flag as part of flag state requirements that derive from maritime regulations in the International Code of Signals and the International Safety Management (ISM) Code. These codes are published by the International Maritime Organization (IMO) as an ongoing effort to reinforce maritime safety procedures and communications to the international maritime community. Fleet management companies and ship owners are responsible to ensure that each vessel in their respective fleets have the appropriate flag signage onboard to be in compliance. This flag is used to identify the flag state a vessel is sailing under and to communicate with other vessels under the provisions of the International Code of Signals.

The Saba Country Flag is recognized as a large white diamond that fills the flag touching the center on all four sides. The bottom half is filled in with the color blue, while the top half is filled in with the color red. A yellow or gold five pointed star graces the center of the flag and the center of the diamond. The Saba Country Flag was adopted in 1985 as a national symbol. It is designated to be proportioned at a ratio of 2:3, height to length, respectively. The star represents the independent nation of Saba and it's golden color is meant to represent the affection it's citizens feel toward their country as well as the natural mineral wealth of the region. Saba's former association with the Netherlands is depicted in the red, white and blue coloring. These colors represent specific ideals for the nation as they do when used in other flags. The white represents peace and purity, red is symbolic of bravery and a struggle for independence and blue is reminiscent of the sea and Heaven.