The terms used in this Act are defined as follows:
1. The term "serious accident" means a "serious industrial accident" or a "serious civic accident";
2. The term "serious industrial accident" means an industrial accident defined in subparagraph 1 of Article 2 of the Occupational Safety and Health Act, which causes any of the following:(a) At least one person has died;(b) At least two persons have been injured due to the same accident, requiring medical treatment for at least six months;(c) At least three persons have developed occupational diseases prescribed by Presidential Decree, such as acute poisoning attributable to the same hazardous factor, within one year;
3. The term "serious civic accident" means an accident resulting from a defect in the design, manufacture, installation, and management of a specific raw material or product, public-use facility, or public transportation vehicle, which causes any of the following: Provided, That an accident classified as a serious industrial accident shall be excluded herefrom:(a) At least one person has died;(b) At least 10 persons have been injured due to the same accident, requiring medical treatment for at least two months;(c) At least 10 persons have developed diseases for the same cause, requiring medical treatment for at least three months;
4. The term "public-use facility" means a facility prescribed by Presidential Decree, taking into account the scale, area, etc. of the relevant facility, among the following facilities: Provided, That the businesses or places of business of micro enterprises defined in Article 2 of the Act on the Protection of and Support for Micro Enterprises, non-profit facilities equivalent thereto, and educational facilities defined in subparagraph 1 of Article 2 of the Act on the Safety and Maintenance of Education Facilities shall be excluded herefrom:(a) A facility under Article 3 (1) of the Indoor Air Quality Control Act (excluding business places under Article 2 (1) 1 of the Special Act on the Safety Control of Publicly Used Establishments);(b) An establishment under subparagraph 1 of Article 2 of the Special Act on the Safety Control and Maintenance of Establishments (excluding multi-family housing buildings);(c) A place of business specified in Article 2 (1) 1 of the Special Act on the Safety Control of Publicly Used Establishments, whose total floor area (referring to the area calculated pursuant to Article 84 of the Building Act) used for the relevant business is at least 1,000 square meters;(d) Any other facility corresponding to those specified in items (a) through (c), which is highly likely to endanger a human life or cause physical damage when any accident occurs;
5. The term "public transportation vehicle" means any of the following used by the general public:(a) Urban rolling stock used for operating the urban railroad defined in subparagraph 2 of Article 2 of the Urban Railroad Act;(b) A locomotive or passenger coach (excluding those used for exclusive railroads under subparagraph 5 of Article 2 of the Railroad Service Act) among rolling stock defined in subparagraph 4 of Article 3 of the Framework Act on Railroad Industry Development;(c) A motor vehicle for passengers and freight used for route passenger transport business under subparagraph 1 (d) of Article 3 of the Enforcement Decree of the Passenger Transport Service Act;(d) A passenger ship defined in subparagraph 1-2 of Article 2 of the Marine Transportation Act;(e) An aircraft used for air transport service defined in subparagraph 7 of Article 2 of the Aviation Business Act;
6. The term "product" means any movable property that is manufactured or processed (including those incorporated into another movable or immovable properties);
7. The term "worker" means any of the following persons:(a) An employee under the Labor Standards Act;(b) A person who provides labor for the purpose of consideration in conducting the business, irrespective of the form of contract, such as contracting, outsourcing, and entrustment;(c) Where the business is conducted in accordance with several tiers of contracts, the contractor in each phase and the person who has relations under item (a) or (b) with the contractor;
8. The term "business owner" means a person who operates his or her own business or a person who conducts business by using the labor of others;
9. The term “responsible managing officer, etc.” means any of the following persons:(a) A person who represents the business and is authorized and responsible to exercise general supervision over the business, or a person who takes charge of safety and health affairs in a corresponding manner;(b) The head of a central administrative agency, the head of a local government, the head of a local public enterprise under the Local Public Enterprises Act, and the head of a public institution designated pursuant to Articles 4 through 6 of the Act on the Management of Public Institutions.