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Ordinance on Industrial Safety and Health
Ministry of Labour Ordinance No. 32 of September 30, 1972

Latest Amendments:
Ministry of Health, Labour and Welfare Ordinance No. 47 of March 30, 2007
In Japanese

Update : 2008.03.28

Part II Safety Standards

Chapter VIII-5 Prevention of Dangers in Demolishing, etc., of Concrete Structures

Article 517-14 (Investigation and Work Plan)
  • (1) The employer shall, when carrying out the work set forth in item (xv)-v of Article 6 of the Order, investigate the shape of the structure, cracks and the surrounding environment, etc., and establish a work plan in conformity with what is known by the said investigation in order to prevent workers from dangers due to collapsing of the structure, flying and falling, etc., of objects, and carry out the work by the said work plan.
  • (2) The work plan set forth in the preceding paragraph shall be the one describing the following matters:
    • (i) The method and procedure of the work.
    • (ii) The type and capability of the machine, etc., to be used.
    • (iii) The method of installation of stays, establishment of prohibited entry area, and any other measures for preventing workers from dangers due to the collapse or falling of outer walls, posts, girders, etc.
  • (3) The employer shall, when having established the work plan set forth in paragraph (1),, make the matters set forth in the item (i) and (iii) of the preceding paragraph known to the workers concerned.
Article 517-15 (Work of Demolition, etc., of a Concrete Structure)
  • (1) The employer shall, when carrying out the work set forth in item (xv)-v of Article 6 of the Order, take the following measures:
    • (i) To prohibit workers other than those concerned from entering the area where the work is carried out.
    • (ii) To suspend the work when dangers regarding the implementation of the said work are forecast due to bad weather conditions such as strong wind, heavy rain, and heavy snow;
    • (iii) When lifting or lowering equipment, tools, etc., to have workers use lifting ropes, lifting bags, etc.
Article 517-16 (Signal for Pulling Down, etc.)
  • (1) The employer shall, when carrying out the work pulling down, etc., of outer walls, post, etc., in the case where carrying out the work set forth in item (xv)-v of Article 6 of the Order, set fixed signals for pulling down operation, etc., and make them known to the workers concerned.
  • (2) The employer shall, in the case where carrying out a pulling down operation set forth in the preceding paragraph, when it is liable to cause dangers to workers other than those engaged in the said pulling down operation (hereinafter referred to as “other workers” in this Article), have the said worker give the signals and not start the said pulling down operations unless otherwise having confirmed that the other workers have evacuated the area.
  • (3) The worker engaging in the work pulling down set forth in paragraph (1) shall, when it is liable to cause dangers in the preceding paragraph, give signals in advance, and not start the said pulling down work unless otherwise having confirmed that the other workers have evacuated the area.
Article 517-17 (Appointment of an Operations Chief of Demolition, etc., of Concrete Structures)
  • (1) The employer shall, as regards the work set forth in item (xv)-v of Article 6 of the Order, appoint an operations chief of demolition, etc., of concrete structures from the persons who have completed the skill training course for operations chief of demolition, etc., of concrete structures.
Article 517-18 (Duties of an Operations Chief of Demolition, etc., of Concrete Structures)
  • (1) The employer shall have an operations chief of demolition, etc., of concrete structures carry out the following matters:
    • (i) To decide a work method and arrangement of workers, and supervise the work directly.
    • (ii) To check the function of an instrument, a tool, a safety belt, etc., and a safety helmet and remove defective ones.
    • (iii) To monitor the use of a safety belt, etc., and a safety helmet.
Article 517-19 (Wearing of a safety Helmet)
  • (1) The employer shall, when carrying out the work set forth in item (xv)-v of Article 6 of the Order, have the worker engaging in the said work wear a safety helmet in order to prevent workers from dangers due to flying or falling objects.
  • (2) The worker engaging in the work set forth in the preceding paragraph shall wear the safety helmet set forth in the same paragraph.
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