The NPC votes to update the cornerstone of China's legal system to dispel confusion and prepare the way for more changes.
Qiu He, a once-controversial leader of Southwest Yunnan province, has become the latest target of the anti-corruption campaign.
China will tackle air pollution with tough punishments that will make the costs for those behind illegal production and emission "too high to bear", Premier Li Keqiang said on Sunday.
Premier Li Keqiang downplays "exaggeration" about economic strength, saying China, as a developing country, is not the world's largest economy.
There will not be a tightening of policies and the "one country, two systems" principle should not be changed at will, says Li.
Premier Li Keqiang answered 17 questions from Chinese and foreign media covering almost all areas, with the focus on economy and reform.
Premier Li Keqiang says he is determined to keep the reform process going, vowing to reduce more government power lists.
Chinese Premier Li Keqiang speaks at a news conference after the closing session of the 12th National People's Congress (NPC), at the Great Hall of the People, in Beijing, March 15, 2015.