Legal basis: Article 3 of the Administrative Measures on Preferential Policies of Value-added Tax for Promoting the Employment of Disabled Persons? Taxpayers who apply for preferential tax policies for the first time shall provide the following filing materials to the competent tax authorities: (1) filing form for tax eligibility. (2) Copies of People's Republic of China (PRC) Disabled Persons' Card or People's Republic of China (PRC) Disabled Persons' Card and disabled soldiers (grade 1 to grade 8), indicating that they are consistent with the original and stamped with the official seal page by page. Where a mentally handicapped person is placed, it shall provide a written statement that the mentally handicapped person agrees to employment and written materials signed or sealed by his legal guardian to prove that the mentally handicapped person has working conditions and willingness to work. (three) a copy of the identity certificate of the disabled, indicating that it is consistent with the original, and stamped with the official seal page by page.