Ask X3What does 49 CFR 172.327 (Petroleum sour crude oil in bulk packaging) require?
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As an Ask X3 fleet-compliance assistant, here is what 49 CFR 172.327 requires for motor-carrier owners transporting petroleum sour crude oil in bulk packaging:
If you transport petroleum crude oil containing hydrogen sulfide (sour crude oil) in concentrations where the evolved vapors may present an inhalation hazard, you must include a durable, legible, and readily visible marking, label, tag, or sign to warn of the toxic hazard.
Specifically, you must follow these practical rules:
* Where to display it: Display the warning at each location (such as a manhole or loading head) where workers or others might be exposed to hydrogen sulfide vapors.
* Option 1 (Square-on-point marking): Use a marking that is similar to the regulation's illustration, with a minimum dimension of at least 100 mm (3.9 inches) on each side and a border width of at least 5 mm. The border must be black or red on a white or contrasting background, with a black symbol centered inside.
* Option 2 (Label, tag, or sign): Instead of the square-on-point marking, you can use a label, tag, or sign that is durable, written in English, legibly printed, and appropriately sized. It must include a warning statement such as “Danger, Possible Hydrogen Sulfide Inhalation Hazard” to communicate the risk.