①A Resident that has been approved as referred to in Article 143 (Blue Returns), must keep books and documents on the business prescribed in that Article; record transactions involving real property income, business income, and timber income in them; and keep those books and documents on file; pursuant to Ministry of Finance Order.

②On finding it to be necessary to do so, the competent district tax office director for the locality in which a Resident pays taxes may give any necessary instruction about those of the Resident's books and documents which are connected with the business prescribed in that Article, to a Resident that has been approved as prescribed in Article 143.