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Ordinance on Safety of Boilers and Pressure Vessels
Ministry of Labour Ordinance No.33 of September 30, 1972

Latest Amendments:
Ministry of Health, Labour and Welfare Ordinance No. 171 of July 16, 2001
In Japanese

Chapter II. Boilers

Section Installation

(Notification on Installation)
  1. Article 10.When the employer who is to install a boiler (excluding mobile boilers, hereinafter the same in this Article) wishes to submit a notification under the provision of paragraph 1 of Article 88 of the Law, the employer shall submit a Notification on Installation of Boiler (Form No.11) together with a boiler specification (Form No.3) and documents showing the following items to the Chief of the Labour Standards Inspection Office which exercises jurisdiction over the area where the workplace concerned is located (hereinafter referred to as the "Chief of the competent Labour Standards Inspection Office"):
    1. Boiler room as provided for by Article 18and its surrounding.
    2. Situation of the placing of boiler and arrangement of piping attached to it.
    3. Foundation of boiler installation and the construction of combustion chamber and flue.
    4. Measures to watch whether combustion continues normally or not.
  2. In presenting a notification in accordance with the provision of the preceding paragraph, the provision of paragraph 1 of Article 85 of the Ordinance on Industrial Safety and Health (Ministry of Labour Ordinance No.32 of 1972, hereinafter referred to as the "Safety and Health Ordinance") shall be applied as follows:
    1. In the case of presenting a notification on a boiler in conjunction with the building or other machines, in accordance with the provision of paragraph 1 of Article 88 of the Law, it shall be deemed unnecessary to describe those items in the notification and documents as described in paragraph 1 of Article 85 of the Safety and Health Ordinance but overlap with the items which are included in the notification on installation of the boiler, boiler specification and documents rescribed by the preceding paragraph.
    2. In presenting a notification, in accordance with the provision of paragraph 1 of Article 88 of the Law, only on the boiler, the provision of paragraph 1 of Article 85 of the Safety and Health Ordinanceshall not be applicable.
  3. When the employer (excluding those provided for by paragraph 1 of Article 88 of the Law) wishes to install a boiler, he shall, under the provision of paragraph 1 of the same Article which is applied mutatis mutandis in paragraph 2 of the same Article, submit a Notification on Installation of Boiler (Form No.11) together with a boiler specification and documents as described in paragraph 1 to the Chief of the competent Labour Standards Inspection Office.
(Report on Installation of Mobile Boiler)

Article 11.A person who is to install a mobile boiler, shall in advance submit a Report on Installation of Boiler (Form No.12) together with a boiler specification (Form No.3) and a boiler inspection certificate (Form No.6) to the Chief of the competent Labour Standards Inspection Office.

(Pre-Installation Inspection)
  1. Article 12The persons described in the following items shall, under the provision of paragraph 1 of Article 38 of the Law, have the boiler specified in the respective items inspected by the Director General of the Prefectural Labour Bureau. This provision shall not apply to a specified waste-heat boiler that has been inspected by an authorized agency for inspection at time of manufacture, etc.:
    1. A person who has imported a boiler.
    2. A person who is to install a boiler which has not been installed for the period of one year or more (two years or more for the boiler which the Director General of the Prefectural Labour Bureau has approved the boiler is kept in a good condition during uninstalled period) after the shop inspection or the inspection as prescribed in this paragraph.
    3. A person who is to reinstall or resume the use of a boiler for which use has been discontinued.
  2. A person who has manufactured a boiler in a foreign country may, under the provisions of paragraph 2 of Article 38of the Law, have said boiler inspected by the Director General of the Prefectural Labour Bureau (by the Director General of the Prefectural Labour Bureau or an authorized agency for inspection at time of manufacture, etc., for specified waste-heat boilers.).Where said inspection has been conducted, the provisions of the preceding paragraph shall not apply to the person who imported said boiler.
  3. Any person who wishes to receive an inspection by the Director General of the Prefectural Labour Bureau or by the authorized agency for inspection at time of manufacture, etc., under either of the preceding two paragraphs (hereinafter referred to as the "pre-installation inspection" in this Chapter) shall submit an Application for Pre-Installation Inspection of Boiler (Form No.13) together with a boiler specification (Form No.3) to the person who performs such inspection (hereinafter called the "pre-installation inspector").
  4. When a person who imported a boiler or manufactured it in a foreign country wishes it to undergo a pre-installation inspection, he may attach the document in which a person designated by the Minister of Health, Labour and Welfare (limited to persons with residence in a foreign country) indicates that the construction of the boiler related to the said application is in compliance with the standards (limited only to the parts related to the construction of boilers) established by the Minister of Health, Labour and Welfare based on the provisions of paragraph 2, Article 37 of the Lawfor the application prescribed in the preceding paragraph.
  5. The pre-installation inspector shall stamp a mark (Form No.4) on the body of the boiler which passed the pre-installation inspection, and stamp a mark "passed the pre-installation inspection" (Form No.14) on the boiler specification concerned and grant the said specification to the applicant.
  6. The Director General of the Prefectural Labour Bureau shall issue a boiler inspection certificate (Form No.6) to the applicant in relation to the mobile boiler which passed the pre-installation inspection.

(Measures to Be Taken When Undergoing a Pre-Installation Inspection)

Article 13 The provision of Article 6shall apply mutatis mutandis to a pre-installation inspection.

(Completion Inspection)
  1. Article 14A person who installed a boiler (excluding the mobile ones) shall, under the provision of paragraph 3 of Article 38 of the Law, have the boiler as well as the following matters in relation to the said boiler inspected by the Chief of the competent Labour Standards Inspection Office. However this provision shall not be applied to the boiler for which it is deemed that such inspection is not necessary by the Chief of the competent Labour Standards Inspection Office:
    1. Boiler room as provided for by Article 18.
    2. Situation of the placing of a boiler and arrangement of piping attached to it.
    3. Foundation of boiler installation and the construction of combustion chamber and flue.
  2. The inspection as provided for by the preceding paragraph (hereinafter referred to as the "completion inspection" in this Chapter) shall not be undergone unless the boiler pass the shop inspection or pre-installation inspection.
  3. A person who wishes to undergo a completion inspection shall submit an Application for Completion Inspection of Boiler (Form No.15) to the Chief of the competent Labour Standards Inspection Office.
(Boiler Inspection Certificate)
  1. Article 15The Chief of the competent Labour Standards Inspection Office shall issue a boiler inspection certificate (Form No.6) in relation to the boiler which passes the completion inspection or those as described by the provision of paragraph 1 of the preceding Article.
  2. When a person who has installed a boiler has lost or damaged a boiler inspection certificate, he shall submit an Application for Reissuance of Boiler Inspection Certificate (Form No.16) together with the following documents to the Chief of the competent Labour Standards Inspection Office (for the boiler inspection certificate for mobile boilers, to the Director General of the Prefectural Labour Bureau who has granted the said certificate through the Chief of the competent Labour Standards Inspection Office) and shall have the said inspection certificate reissued:
    1. When he has lost a boiler inspection certificate, the document showing the fact.
    2. When he has damaged a boiler inspection certificate, the said inspection certificate.
(Appointment of an Operations Chief of Boiler Installation Work)

Article 16The employer shall, with regard to work prescribed in item 16 of Article 6 of the Cabinet Order, appoint an operations chief of boiler installation work from among those who have completed the skill training course for operations chief of boiler installation work.

(Duties of an Operations Chief of Boiler Installation Work)

Article 17.The employer shall have an operations chief of boiler installation work perform the following matters:

  1. Determine the methods of operation and placement of workers, and superintend the operation directly.
  2. Inspect the existence of defect in materials used for installation work and the function of equipment and tools, and remove defective ones, if any.
  3. Superintend the use of safety belt (the one as prescribed in item 40 of Article 13 of the Cabinet Order) and other life lines, and personal protective equipment.
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