Brake system is not required in some states, BUT, unlike drivers licenses, there is no reciprocity on equipment. So, even though your home state might not require them if you go into any state that does you need to be in compliance. Pretty much means you have to have them. There are charts on the internet that purport to show the laws but most are for TT's and lots of states (WA is one) don't consider a motorized vehicle towing a motorized vehicle to be a TT set up.
Some states (WA, OR and CA) use a performance spec: stop from XX mph in XX ft and no add'l braking required. WA and CA are the same, OR is tougher. Our Magna can easily match these specs but still not legal in all states.
But, the more weight you have the more braking force is required to stop them. The laws of physics come into play.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Lifetime GS Member, SKP, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
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