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".

Sun: Deity.

Peace, Unity & Progress: Political and social aspirations of the Piateños.