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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 6. Alteration, Suspension and Discontinuance of the Use

(Notification on Alteration)
  1. Article 41. With regard to a boiler, when the employer who intends to alter any part or equipment as described in the following items wishes to present a notification in accordance with the provision of paragraph 1 of Article 88 of the Law, he shall submit a Notification on Alteration of Boiler (Form No.20) together with a boiler inspection certificate and a document showing the content of the alteration concerned to the Chief of the competent Labour Standards Inspection Office:
    1. Shell, dome, flue, fire box, end plate, crown plate, tube plate, header or stay.
    2. Attached equipment.
    3. Burning apparatus.
    4. Foundation of installation.
  2. 2. The provision of paragraph 2 of Article 10 shall apply mutatis mutandis to the case when the notification under the provision of the preceding paragraph is submitted. In this case, the phrase "notification on installation of boilers, boiler specification and documents preserved by the preceding paragraph" used in item 1 of paragraph 2 of the same Article shall be read as "notification on alteration of boiler and documents prescribed by paragraph 1 of Article 41."
  3. 3. With regard to a boiler, when the employer (excluding those as described in paragraph 1 of Article 88 of the Law) wishes to alter any part or equipment prescribed in each item of paragraph 1, under the provision of paragraph 1 of the same Article which is applied mutatis mutandis in paragraph 2 of the same Article, he shall submit a Notification on Alteration of Boiler (Form No.20) together with a boiler inspection certificate and a document prescribed in paragraph 1 to the Chief of the competent Labour Standards Inspection Office.
(Alteration Inspection)
  1. Article 42. With regard to a boiler, a person who has altered any part or equipment as specified in paragraph 1 of preceding Article, under the provision of paragraph 3 of Article 38 of the Law, shall have the said boiler inspected by the Chief of the competent Labour Standards Inspection Office. However, this provision shall apply to the boiler for which it is deemed that the said inspection is not necessary by the Chief of the competent Labour Standards Inspection Office.
  2. 2. A person who intends to undergo an inspection under the provision of the preceding paragraph (hereinafter referred to as the "alteration inspection" in this Chapter) shall submit an Application for Alteration Inspection of Boiler (Form No.21) to the Chief of the competent Labour Standards Inspection Office.
  3. 3. The provisions of paragraph 2 and 3 of Article 6 shall apply mutatis mutandis to an alteration inspection. In this case, the term "the Director General of the Prefectural Labour Bureau" used in paragraph 2 of the said Article shall be read as "the Chief of the Labour Standards Inspection Office."

(Endorsement of Boiler Inspection Certificate)

Article 43. The Chief of the Labour Srandards Inspection Office shall endorse, with regard to the boiler which passed the alteration inspection (including the boilers set forth by the provision of paragraph 1 of the preceding Article), the boiler inspection certificate concerned, in respect of the date of inspection, parts of boiler altered and the results of inspection.

(Change of Employer, etc.)

  1. Article 44. With regard to an installed boiler, when the employer has changed, the new employer shall, within ten days of the change, submit an Application for Renewal of Boiler Inspection Certificate (Form No.16) together with a boiler inspection certificate to the Chief of the competent Labour Standards Inspection Office, and shall have the said inspection certificate renewed.
  2. 2. The provision of the preceding paragraph shall, with regard to an installed mobile boiler, apply mutatis mutandis to the case when the workplace controlling the boiler concerned is changed. In this case, the term "the Chief of the competent Labour Standards Inspection Office" used in the said paragraph shall be read as "the Director General of the Prefectural Labour Bureau who has granted the said boiler inspection certificate through the Chief of the competent Labour Standards Inspection Office."

(Suspension)

Article 45. When a person who has installed a boiler intends to suspend the use of the boiler, and the period of suspension to be intended is over a validity term of a boiler inspection certificate, he shall report the fact, within the validity term of the said boiler inspection certificate, to the Chief of the competent Labour Standards Inspection Office."

(Inspection for Resumption of Use)

  1. Article 46. A person who intends to resume the use of a boiler in suspension, shall, under the provision of paragraph 3 of Article 38 of the Law, have the said boiler inspected by the Chief of the competent Labour Standards Inspection Office.
  2. 2. A person who intends to undergo an inspection under the provision of the preceding paragraph (hereinafter referred to as the "inspection for resumption of use" in this Chapter) shall submit an Application of Inspection for Resumption of Use of Boiler (Form No.22) to the Chief of the competent Labour Standards Inspection Office.
  3. 3. The provisions of paragraph 2 and 3 of Article 6 shall apply mutatis mutandis to inspection for resumption of use. In this case, the term "the Director General of the Prefectural?@Labour Bureau" used in paragraph 2 of the same Article shall be read as "the Chief of the Labour Standards Inspection Office."

(Endorsement of Boiler Inspection Certificate)

Article 47. The Chief of Labour Standards Inspection Office shall endorse, with regard to the boiler which passed an inspection for resumption of use, the boiler inspection certificate concerned in respect of the date of inspection and results of inspection.

(Return of Boiler Inspection Certificate)

Article 48. When the employer discontinues the use of a boiler, he shall, without delay, return the boiler inspection certificate to the Chief of the competent Labour Standards Inspection Office (for a boiler inspection certificate of a mobile boiler, to the Director General of the Prefectural Labour Bureau who has granted the said boiler inspection certificate through the Chief of the competent Labour Standards Inspection Office)."

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