Ozrockrat
Expedition Leader
I just went through the painful process of changing my Ambo to a Motorhome.
Here is the definition from Arizona MVD (Arizona Revised Statutes, Title 28 - Transportation 28-4301 Definitions )
20. "Motor home" means a motor vehicle that is primarily designed as temporary living quarters and that:
(a) Is built onto as an integral part of, or is permanently attached to, a motor vehicle chassis.
(b) Contains at least four of the following independent life support systems if each is permanently installed and designed to be removed only for purposes of repair or replacement:
(i) A cooking facility with an onboard fuel source.
(ii) A gas or electric refrigerator.
(iii) A toilet with exterior evacuation.
(iv) A heating or air conditioning system with an onboard power or fuel source separate from the vehicle engine.
(v) A potable water supply system that includes at least a sink, a faucet and a water tank with an exterior service supply connection.
(vi) A 110-125 volt electric power supply.
The other part that takes a lot of buggering about is getting the inspection. It only requires a level 1 inspection. In theory a 3rd party provider can do this. In practice they do not seem to know what to do and will refer you to the MVD.
They check that you have at least 4 of the 6 items listed above (it helps to have been running your box AC so when you turn the fan on they think you have battery powered AC!!! Who am I to spoil their fantasies).
The only real change on the inspection was changing the model from incomplete cab chassis to SPCON for special construction. Then they changed the body style from AM for ambulance to MHC for Class C Motorhome. Contrary to what the 3rd party MVD guys tell you there is no need for a "Motorhome coach number" if they go with the SPCON model.
Now you all know that this will all depend on what sort of a day the MVD person is having. I am sure they make some of this stuff up on the spot.

Here is the definition from Arizona MVD (Arizona Revised Statutes, Title 28 - Transportation 28-4301 Definitions )
20. "Motor home" means a motor vehicle that is primarily designed as temporary living quarters and that:
(a) Is built onto as an integral part of, or is permanently attached to, a motor vehicle chassis.
(b) Contains at least four of the following independent life support systems if each is permanently installed and designed to be removed only for purposes of repair or replacement:
(i) A cooking facility with an onboard fuel source.
(ii) A gas or electric refrigerator.
(iii) A toilet with exterior evacuation.
(iv) A heating or air conditioning system with an onboard power or fuel source separate from the vehicle engine.
(v) A potable water supply system that includes at least a sink, a faucet and a water tank with an exterior service supply connection.
(vi) A 110-125 volt electric power supply.
The other part that takes a lot of buggering about is getting the inspection. It only requires a level 1 inspection. In theory a 3rd party provider can do this. In practice they do not seem to know what to do and will refer you to the MVD.
They check that you have at least 4 of the 6 items listed above (it helps to have been running your box AC so when you turn the fan on they think you have battery powered AC!!! Who am I to spoil their fantasies).
The only real change on the inspection was changing the model from incomplete cab chassis to SPCON for special construction. Then they changed the body style from AM for ambulance to MHC for Class C Motorhome. Contrary to what the 3rd party MVD guys tell you there is no need for a "Motorhome coach number" if they go with the SPCON model.
Now you all know that this will all depend on what sort of a day the MVD person is having. I am sure they make some of this stuff up on the spot.

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