According to Subparagraph 2-(3)-(iv), Paragraph 1, Article 17 of the Act, a taxpayer who applies for special deduction for the disabled or handicapped shall submit a copy of the handbook for the disabled and mentally retarded specified or other such recognized proof issued by the relevant government organization, or a copy of a medical diagnosis issued by a specialist physician as required in Paragraph 1, Article 19 of the Mental Health Act.