Las áreas de trabajo antiguo o abandonado deben ser aisladas en lo posible herméticamente, del circuito de ventilación, para evitar el tránsito de personal. CAPITULO II. DISPOSICIONES ESPECIALES PARA MINAS GRISUTUOSAS.
Decreto 1335 de 1987 →In force
Article 33
Decreto 1335 de 1987 · mediante el cual se expide el reglamento de seguridad de las labores subterráneas.
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Text of the article
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Constitutional history
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