According to Xinhua News Agency, China Daily and other official media outlets of English language of China, 中央纪律检查委员会 is Central Commission for Discipline Inspection, but 中央政法委员会 is Committee of Polictical and Legal Affairs,发展和改革委员会 is National Development and Reform Commission,中央直属机关工作委员会 is Work Committee for Departments Directly Under the CPC Central Committee.
Commission and committee are both used to mean 委员会, what is the difference?