Tanks Containing Flammable or Combustible Liquid 29 CFR

Dip tanks with more than 150 gallons or 10 square feet in liquid surface area must be equipped with a properly trapped overflow pipe leading to a safe location outside 

All dip tanks exceeding 150 gallons of flammable liquid capacity or having a liquid surface area exceeding 4 square feet must be protected with at least one of the following automatic extinguishing facilities water spray system, foam system, carbon dioxide system, dry chemical system, or automatic dip tank cover. 

Dockboards must be strong enough to carry the load imposed upon them. Portable dockboards must be anchored or equipped with devices that will prevent their slipping. Handholds should exist on dockboards that provide a safe and effective means of being able to handle them. Railroad cars should be provided with mechanisms that would prevent movement while dockboards are being used. 

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