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Enforcement Order of the Industrial Safety and Health Act
Cabinet Order No. 318, August 19, 1972

Amendments:
Cabinet Order No. 331. Oct 20, 2006

掲載日：2008.03.25

Article 6 (Works Subject to Appoint an Operations Chief)
  • The operations designated by the Cabinet Order set forth in the Article 14 of the Act shall be as follows:
    • (i) The operations in a pressurized chamber (limited to those carried out in rooms or shafts pressurized exceeding the atmospheric pressure by the caisson method or other compressed air methods);
    • (ii) The operations welding, cutting or heating metals by using acetylene welding equipment or gas welding equipment using a manifold;
    • (iii) The operations assembling, dismantling, altering or repairing the skyline logging cable crane (meaning the appliance composed of a yarder, cableway, carriage, supporting posts and other accessories, and hoisting raw woods or fuel woods, and carrying them in air by power driven system) or the logging cableway (meaning the appliance composed of a cableway, carriage, supporting posts and other accessories, and carrying raw woods or fire woods in air for the fixed zone) falling under any of the following categories, or the operations yarding or carrying by these appliances;
      • (a) Those with a prime mover with a rated output exceeding 7.5 kW
      • (b) Those with the total the actual distance of spans of 350 m or more
      • (c) Those having the maximum operating load of 200 kg or more
    • (iv) The operations handling a boiler (excluding a small-sized boiler);
    • (v) The operations pertaining to the radiation work listed in item (1) or (3) of Appended Table 2 (excluding the operations using medical X-ray generating apparatuses or X-ray generating apparatuses with rated voltage measured at its peak value of 1,000 kV or more (excluding those apparatuses listed in item (2) of the same Table 2, hereinafter referred to as "X-ray apparatuses");
    • (v-ii) The operations carrying out radiography by using gamma-ray radiation apparatuses;
    • (vi) The operations carried out by using woodworking machines (limited to the circular saw, band saw, planer, chamfering unit and router, excluding portable ones) at the workplace where 5 or more said machines are installed (in case of including band saws with automatic carriage, 3 or more);
    • (vii) The operations carried out by using powered press machines at the workplace where 5 or more said machines are installed;
    • (viii) The operations heating and drying objects by using the equipment listed in followings;
      • (a) Of industrial dryers (meaning drying chambers or dryers heating or drying substances other than the explosives prescribed in paragraph (1) of Article 2 of the Explosive Control Act (Act No. 149 of 1950) by using the heat source, the same shall apply hereinafter), the equipment pertaining to dangerous substances, etc. (meaning dangerous substances listed in Appended Table 1 and the substances to be dried from which these dangerous substances are generated) with an internal cubic volume of 1 m3 or more;
      • (b) Of industrial dryers, the equipment pertaining to the substances other than dangerous substances, etc. described in (a) using fuel as the heat source (limited to those having the maximum consuming amount of 10 kg/h or more for solid fuel, 10 liters/h or more for liquid fuel or 1 m3/h or more for gas fuel) or using electric power as the heat source (limited to those having rated consuming power of 10 kW or more).
    • (viii-ii) The operations using a concrete breaker;
    • (ix) The operations excavating the natural ground with the height of the excavating surface of 2 m or more (excluding the excavation work for pits other than tunnels and vertical pits, and the work listed in item (xi));
    • (x) The operations fitting or removing struts or waling of shoring;
    • (x-ii) The operations excavating tunnels, etc. (meaning pits (excluding the pits for quarrying rocks prescribed in Article 2 of Quarrying Act (Act No. 291 of 1960)) other than tunnels or vertical pits, hereinafter the same, and excluding operations by using excavating machines without workers approaching the tunnel face) or associated muck loading, assembling tunnel shoring (meaning the shoring to prevents the rock falling or wall falling), fitting lock-bolts or spraying concrete, etc;
    • (x-iii) The operations lining tunnels, etc. (meaning assembling, moving or removing tunnel concrete form shoring (meaning the temporary structure composed of the form using for concrete placing of archand side wall and supports, beams, ties, braces, etc. for supporting the form), or concrete placing associated with the said assembling or moving);
    • (xi) The operations excavating for quarrying rocks prescribed in Article 2 of Quarrying Act with the height of excavating surface of 2 m or more;
    • (xii) The operations making or breaking stacks of cargo (meaning the group of cargo (excluding bulk cargoes of wheat, soybeans, ore, etc.) piled up at a warehouse, shed or the ground) of 2 m in the height or more (excluding the work carried out only by the operator of loading machine);
    • (xiii) The operations loading, unloading or moving cargo on ships (excluding those carried out without using a ship lifting appliance on the ships having gross tonnage less than 500 tons);
    • (xiv) The operations assembling and dismantling the concrete form shoring (meaning the temporary structure composed of the supports, beams, ties braces, etc. and supporting the form using for concrete placing of the slabs and girders, etc. of structure, hereinafter the same);
    • (xv) The operations assembling, dismantling or altering hanging scaffolds (excluding the hanging scaffolds of gondolas, hereinafter the same), overhanging scaffolds or scaffolds with the height of 5 m or more;
    • (xv-ii) The operations assembling, dismantling or altering the framework of a building or a tower composed of metal members (limited to those with the height of 5 m or more );
    • (xv-iii) The operations installing, dismantling or altering the superstructure of a bridge composed of metal members (limited to those with the height of 5 m or more or the span of the bridge of 30 m or more among the said superstructure);
    • (xv-iv) The operations assembling the structural members of a wooden building prescribed in paragraph (1) of Article 2 of the Enforcement Order of the Building Standard Act (Cabinet Order No. 338 of 1950) with the height of 5 m or more or the associated work backing the roof or the exterior wall;
    • (xv-v) The operations dismantling or demolishing a concrete structure (limited to those with the height of 5 m or more);
    • (xvi) The operations installing or altering the concrete superstructure of a bridge (limited to those with the height of 5 m or more or the span of the bridge of 30 m or more among the said superstructure);
    • (xvii) The operations handling class-1 pressure vessels (excluding small-sized pressure vessels and vessels listed in followings):
      • (a) Of the vessels listed in (a) of item (v) of Article 1, those with an internal cubic volume of 5 m3 or less;
      • (b) Of the vessels listed in (b) to (d) of item (v) of Article 1, those with an internal cubic volume of 1 m3 or less .
    • (xviii) The operations manufacturing or handling the specified chemical substances listed in Appended Table 3 (excluding the operations handling for research or examination);
    • (xix) The operations pertaining to the lead work listed in item (1) to (10) in Appended Table 4 (excluding those carried out by remote control in an isolated chamber);
    • (xx) The operations pertaining to the tetraalkyl lead, etc. work listed in item (1) to (6) or (8) of Appended Table 5 (excluding those carried out by remote control in an isolated chamber, and limited to the work loading and unloading of drums and other containers for the work listed in item (6) of the same table);
    • (xxi) The operations carried out at the dangerous place of insufficient oxygen listed in Appended Table 6;
    • (xxii) Of the works manufacturing or handling the organic solvents listed in Appended Table 6-2 (including the mixture of the said organic solvent and other substances containing the said organic solvent exceeding 5 % of the weight of these mixture, the same shall apply in item (x) of Article 21 and item (vi) of paragraph (1) of Article 22) at the indoor workshop, tank, hold, inside of pit or other places prescribed by the Ordinance of the Ministry of Health, Labour and Welfare, those operations prescribed by the Ordinance of the Ministry of Health, Labour and Welfare;
    • (xxiii) The operations handling asbestos or the preparations and other substances containing asbestos exceeding 0.1% of the weight of the said preparations and other substances (hereinafter referred to as “asbestos, etc,”) (excluding the operations handling for research or examination), or the operations manufacturing asbestos, etc. for research or examination.
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