These regulations are enacted pursuant to the provisions of Paragraph 4 of Article 16 of Safety and Health Act (Hereinafter referred to as the Act).

Unless otherwise defined in these Regulations, the terminology relating to dangerous machines and equipment, as specified in the relevant stipulations of occupational safety and health shall apply herein.

These Regulations shall apply to the dangerous machines with the capacity as stipulated as shown below:
1. Fixed type crane: The fixed type crane that has a lifting capacity above 3 tons; or the stacking crane having a lifting capacity above 1ton.
2. Mobile type crane: The mobile type crane that has a lifting capacity above 3 tons.
3. Derrick crane: The derrick crane that has a lifting capacity above 3 tons.
4. Construction elevator: The elevator that is erected at the jobsite for construction activities use.
5. Construction lift: The construction lift that the height of its guide rails or elevating path above 20 m.
6. Hoisting cage: The hoisting cage that is used for carrying persons.

These Regulations shall apply to the dangerous devices with capacity as shown below:
1. Boilers
(1) Steam boilers that have a maximum operating pressure exceeding one (1) kg/c㎡, or a heat transfer area exceeding one (1) ㎡ , which is either equipped with steam pipes open in the atmosphere with inside diameter above 25 mm, or equipped with the U-shape stand pipes with inside diameter above 25 mm , water head above 5 m, and heat transfer area over 3.5 ㎡ ), or that have inside diameter of shell body exceeding 300 mm or the body length exceeding 600 mm.
(2) Hot water boiler that other than those heat medium boilers which have the water head above ten (10) m or heat transfer area above eight (8) ㎡ and the operating temperature exceeding the boiling point of the liquid under atmosphere pressure of one (1) ba.
(3) Heat medium boilers with head pressure above 10m or transmission acreage above 8㎡.
(4) Throughflow-type boilers that( including multi-pipe thoughflow boilers equipped with a cylinder header having inside diameter above 150 mm or equipped with a square header having sectional area above 177c㎡ ) have a maximum operating pressure above ten (10) km/c㎡ , or that (including those equipped with steam separators whose inside diameter over 300mm or those whose insidecapacity over 0.07m3 ) have the heat transfer area above ten (10) ㎡.
2. Pressure vessels:
(1) Category Ι pressure vessels that have a maximum operating pressure above one (1) km/ c㎡ or internal volume over 0.2 m3.
(2) Category Ι pressure vessels that have not only a maximum operating pressure above one ( 1) km/c㎡ but also an inside diameter above 500 mm and alength above 1000 mm.
(3) Category Ι pressure vessels that have the product of the maximum pressure ( expressed in km/ c㎡) and the internalvolume (expressed in m3) exceeding 0.2.
3. Special equipment for highpressure gases:
These special equipment refer to those equipment used for generation and related storage of the high pressure gages, as well as the supporting facilities ( including towers and tanks used for reaction, separation, refining or distillation purpose , where the distance between the highest tangent and lowest tangent of the towers are longer than five (5) m or the capacity of the storage tank is over 300 m3 or 3 tons), that the product of their design pressure ( expressed in km/ c㎡) and internal capacity (expressed in m3) exceeding 0.04. However, the vessels listed below shall be excluded from above category:
(1) Vessels relating to pumps, compressors, pressure accumulators, etc.
(2) Vessels relating to buffers and other relevant buffering instruments.
(3) Vessels relating to flow meters, level gauges and other measuring instruments and filters.
(4) Vessels used for the air conditioning equipment.
(5) Vessels used for air compressing instruments having gauge pressure below 50 kg/c㎡ under the temperature of 35° C.
(6) Vessels usedfor high-pressure vessels.
(7) Other vessels designated by the central competent authority.
4. Vessels used for high-pressure gases:
Except for those vessels listed below, these vessels refer to the vessels that used for containinghigh-pressure gases with the internal capacity over 500 liters, and that can be movablerelative to the ground:
(1) Vessels not used in airtight conditions.
(2) Vessels used for air compressing instruments having gauge pressure below50 kg/c㎡ under the temperature of 35° C.
(3) Others vessels designated by the central competent authority.

The Manufacturer (including modifier) referred to herein means the principal of the factory manufacturing (including modifying) the dangerous machines or equipment. The Owner referred to herein means the owner of the dangerous machines or equipment.

The inspection of the domestic (homemade) hazardous machines/ equipment shall be subject to this regulation and the relevant provisions stipulated in the Occupationalr Safety and Health Act, as well as whole or part of the stipulations contained in the national standards, international standards or association standards which are endorsed and designated by the central governing authority.
Those hazardous machines/ equipment which are either directly imported or locally designed and manufactured as per the aforesaid international standards based on the contractual agreement, may be granted to be inspected in compliance with the same international standards. However, in this connection, the aforesaid machines/ equipment shall also be subject to the stipulations of the same standards relevant to material selection, mechanical properties, construction methods, construction techniques and inspection methods.
To apply for designation of the international standards mentioned in the preceding Paragraphs I and 2, the applicant shall submit the proposed international standards in advance to the central governing authority for approval.In the course of inspection, the Inspecting Organization may request the applicant to present the convincing evidence relevant to the qualification of its previous inspection.
With respect to application for inspection of those tanks, such as underground type storage tank for liquidized natural gases, double shell type storage tank(featured with an outer concrete shell and an inner steel shell) for liquidized natural gases, embedded type storage tank, and etc., which are manufactured by adopting special construction and installation techniques, the owner shall prepare a risk evaluation report in advance according to the following requirements, and submit the same to the central governing authority for review. Unless both the said risk evaluation report and the inspection standards have been approved and designated respectively, the applicant shall not be entitled to apply for the subsequent inspections:
1. A narration of the major consideration in the planning /design of the said Hazardous Machines or Equipment as well as the proposed inspection standards, together with a written commitment of the risk obligations shall be provided for authority's reference and use in review of the above mentioned risk evaluation report,.
2. The said risk evaluation report and the risk control strategy plan shall be duly signed by the original planning/design personnel or by the Manufacturer.
3. The contents of the risk evaluation report shall consist of a description of the risk circumstances, a quantitative evaluation of the risk, the evaluation results, the risk control strategy plan and the owner's committed risk control measures.

The inspection on the dangerous machines or equipment as stipulated in Paragraph 1 of Article 16 in these Regulations shall be carried out by Labor Inspection Agency or Inspection Agency which are designated by the central competent authority (hereinafter referred to as the inspecting organization) .
The necessary qualification certificate of inspection mentioned in the previous subparagraph ,that issued by the inspecting organization.

When carrying out the inspections on the dangerous machines or equipment, the Inspector shall ask the Manufacturer or the Owner to disassemble or remove the covering on the objects to be inspected whenever necessary.