Treaty on Uniform Nomenclature is a Normal Trap Card.
Trap Cards are normally Set first and can be activated on a later turn, often in response to an action.
On the current TCG and OCG Forbidden & Limited lists tracked here, Treaty on Uniform Nomenclature is Unlimited.
YGOPRODeck lists Treaty on Uniform Nomenclature for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
A listed print of Treaty on Uniform Nomenclature appears in Generation Force (GENF-EN073) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Treaty on Uniform Nomenclature is about $0.08 on TCGPlayer (prices change frequently).
