A transportation placard system including a holder including a recess for receiving a placard and a placard fastener engaged with the holder. The placard fastener includes a retaining arm including a placard engagement portion and a retaining tab. The placard fastener further includes a base including a first spring arm including a first downwardly extending claw, a second spring arm including a second downwardly extending claw, and an elongate portion positioned between the first spring arm and the second spring arm. The first spring arm and the elongate portion form a first cavity. The second spring arm and the elongate portion form a second cavity. The retaining tab is positioned within the first cavity and the second cavity.