Carding a mechanical process that aligns cotton, wool or other fibers in the manufacture of textiles. Carding may also refer to: Carding (fraud), a range of credit card fraud activities Carding (police policy), an intelligence gathering policy of certain Canadian police departments Carding brush, used when rust bluing steel Carding Mill Valley, a small valley near Church Stretton, England Hole carding, advantage technique in the game of casino 21 Carding, the use of signals in contract bridge Carding, in North America, requesting a customer to show an identity document as proof of age The Canadian Athlete Assistance Program, also called "the carding program", a program where elite athletes in Canada receive funding from the government