White card (Chinese: 白牌) is a term used to describe citizen-owned automobiles in Hong Kong that are used as illegal unlicensed taxis.
The term has been used since the 1950s, when there was a shortage of public transportation.[1] In the 1950s, Hong Kong taxis were limited in numbers. People started their own illegal businesses, and operated without any licenses or government regulation. The term "White card" is used to describe a fake taxi license. The term is still in use in rural areas where there is no taxi service.