Adult, consensual and non-commercial homosexuality has been legal in China since 1997, when the national penal code was revised. Homosexuality was removed from the Chinese Society of Psychiatry's list of mental illnesses in 2001 and the public health campaign against HIV/AIDS pandemic does include education for men who have sex with men. Officially, overt police enforcement against gay people is restricted to gay people engaging in sex acts in public or prostitution, which are also illegal for heterosexuals. In addition, the declassification in 2001 was never officially recognised by the Ministry of Health (Now National Health Commission).