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Subchapter 7. General Industry Safety Orders
Group 20. Flammable Liquids, Gases and Vapors
Article 138. Hydrogen

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§5497. Operating Instructions.

(a) For installations which require any operation of equipment by the user, legible instructions shall be maintained at operating locations.

(b) A qualified person shall be in attendance at all times while the mobile hydrogen supply unit is being unloaded.

(c) Each mobile liquefied hydrogen supply unit used as part of a hydrogen system shall be adequately secured to prevent movement.

(d) The mobile hydrogen supply unit shall be grounded.

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