Inspecting Propane

Does anyone have any information on inspecting a home fueled with propane?

I have information on tank clearances.

My questions would be on the orifices, fireplaces and appliances.

As a home inspector what are some techniques at inspecting propane fueled appliances.

Thanks

I inspect LPG the same way I would natural gas.

Connectors, supply lines and material used, gas odor, etc.