China

The National People’s Congress exercises the following functions and powers:
…
(2) to supervise the enforcement of the Constitution;
… (Art. 62)

The Standing Committee of the National People’s Congress exercises the following functions and powers:
(1) to interpret the Constitution and supervise its enforcement;
...
(7) To annul those administrative rules and regulations, decisions or orders of the State Council that contravene the Constitution or the statutes;
(8) To annul those local regulations or decisions of the organs of state power of provinces, autonomous regions and municipalities directly under the Central Government that contravene the Constitution, the statutes or the administrative rules and regulations;
… (Art. 67)