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
掲載日：2008.03.28
Part II Safety Standards
Chapter IX Prevention of Dangers Due to Falls, Flying Objects, Collapse, etc.
Section 2 Prevention of Dangers Due to Flying Objects or Collapse
Article 534 (Prevention of Dangers Due to Collapse of Natural Ground, etc.)
- (1) The employer shall, when it is liable to cause dangers to workers due to collapse of natural ground or fallen earth and rocks, take the following measures:
- (i) To make the gradient of the natural ground safe, remove earth and rocks that may fall, or provide a retaining wall, shoring, etc.
- (ii) To remove rainwater, underground water, etc., that may cause collapse of ground or fall of earth and rocks.
Article 535 (Prevention of Dangers Due to Cave-ins, etc.)
- (1) The employer shall, when it is liable to cause dangers due to cave-ins, fall of rocks or collapse of sidewalls in a tunnel, provide shoring, remove loose stones or take other measures to prevent such dangers.
Article 536 (Prevention of Dangers Due to Throwing an Object from a High Place)
- (1) The employer shall, when throwing objects from a high place of 3 m or higher, provide an appropriate throwing facilities, station a watcher or take other measures to prevent the dangers to workers.
- (2) A worker shall, when measures pursuant to the provision of the preceding paragraph have not been taken, not throw objects from a high place with height of 3 m or higher.
Article 537 (Prevention of Dangers Due to Falling Objects)
- (1) The employer shall, when it is liable to cause dangers to workers due to falling objects, provide protective nets, establish a prohibited entry area or take other measures to prevent the said danger.
Article 538 (Prevention of Dangers Due to Flying Objects)
- (1) The employer shall, when it is liable to cause dangers to workers due to flying objects, provide facilities for preventing flying objects, have workers wear personal protective equipment, or take other measures to prevent the said dangers.
Article 539 (Wearing of a Safety Helmet)
- (1) The employer shall, when carrying out the work near a building berth, at high-rise structure construction site, etc., over which other workers are carrying out other works, 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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