Red Stripes: The 16 barangays of the Municipality.

Shield: From the Provincial Seal of Zambales where the town is located.

Sea: Portrays the beautiful beaches of Subic.

Carabao: Portrays agriculture.

Shell: Represents the panoramic view of the bay.

Anchor: Symbolizes ships docked at the bay for its repair and/or its crew's liberty.

Ship: Port Dizon (BCI), the Philippine Shipyard Engineering Corporation, and the former US Naval Facilities.