Excerpt from COF News May 2010
Rough Terrain Cranes are exempt from COF and entry certification, and are registered on an MR2B form as a mobile machine. It is primarily designed for off road use and runs on wheel without cushioning suspension and is incapable of travelling at highway speeds.
All Terrain cranes require a COF and entry certification (Class NA, NB or NC) and are registered on a MR2A as a special purpose vehicle...........
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