I am hoping someone can help me find specific rules and regulations for questions I have on filling fork truck propane cylinders.
Scenario: We have about 5 cylinders UN1978 DOT 4E240 WC-80.0 LB TW-21.6 LB cylinders.
We have a van or a box truck with completely separate storage section from the cabin.
Question: What requirements must we follow for when we bring them to our local propane shop to get them refilled.
Concerns:
Number of tanks allowed?
Total capacity allowed?
Specific tank capacity allowed?
Vehicle types allowed?
Is venting required?
Is venting not required if it is in a box truck separate from the cabin?
When is placarding needed?
Is a manifest needed?

Thank you!