30 CFR § 77.212 Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines

§ 77.212 Draw-off tunnel ventilation fans; installation.

Current through Jul 27, 2026 · Read all of Part 77

When fans are used to ventilate draw-off tunnels the fans shall be:

(a) Installed on the surface;

(b) Installed in fireproof housings and connected to the tunnel openings with fireproof air ducts; and,

(c) Offset from the tunnel opening.

← § 77.211-1 Continuous methane monitoring device; installation and operation; automatic deenergization of electric equipment.§ 77.213 Draw-off tunnel escapeways. →