Legal basis: Notice of the Office of the People's Government of Huangnan Tibetan Autonomous Prefecture on Seriously Compiling Local Chronicles I. Tasks
By 2020, five local chronicles will be compiled, namely, the annals of Huangnan Prefecture (199 1-20 10), Tongren County (19 1-20 10) and Jianzha County. Organize the compilation of local comprehensive yearbooks, review them once a year and publish them publicly.