The Communist Party of China (CPC) opens the 19th CPC National Congress at the Great Hall of the People in Beijing, Oct 18, 2017. [Photo by Edmond Tang/China Daily]

An amendment to the Constitution of the Communist Party of China was approved Tuesday, making Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era as a new component of the Party's guide for action, according to a resolution of the 19th CPC National Congress.

The following are major amendments to the Constitution adopted at the CPC congresses.

19th CPC National Congress, Oct 2017, Beijing

Inclusion of Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era.

18th CPC National Congress, Nov 2012, Beijing

Adoption of Marxist - Leninism, Mao Zedong Thought, Deng Xiaoping Theory, the Three Represents and the Scientific Outlook on Development as the Party's action guideline.

Inclusion of ecological civilization development.

Inclusion of the Scientific Outlook on Development.

16th CPC National Congress, Nov 2002, Beijing

Inclusion of the important thought of "Three Represents", which means the CPC represents the development trend of China's advanced productive forces, the orientation of China's advanced culture and the fundamental interests of the overwhelming majority of the Chinese people.