Shield: From the Provincial Seal of Cagayan where the municipality belongs.
Corn & Sugarcane: Major products of the Municipality.
Carabao: Sturdiness, humility, perseverance and industry of the Piateños.
Green Leaves: Eighteen (18) Barangays that compose the Municipality.
1610: Year when Piat was established as a "pueblo".
Peace, Unity & Progress: Political and social aspirations of the Piateños.