South Central China is a region of the People's Republic of China defined by governmental bureaus that includes the province of Guangdong, Hainan, Henan, Hubei, and Hunan, and the Guangxi Zhuang Autonomous Region, however the two provincial-level special administrative regions (SAR) are also often included under South Central China: Hong Kong and Macau. This part is often divided into South China  and Central China  regions due to difference between civilian customs.