Break away device legal requirements?

Thank you mowermech. That answers what I needed to know. I previously towed a TT behind my old F250 and was familiar with electric brakes, break away switches, and batteries. I was just wondering how a surge system would work if the toad itself bounced off the dolly. Leaving the car in park is not the same as a break away system. The parking pawl which is what keeps the toad in park is not a very beefy part and I suspect would not stop a loose toad. I'd much rather chain the toad to the dolly. That way you'd need a double failure to have a loose toad. Thanks for the education!

ol' yeller wrote:
I'm not trying to hijack this thread but I have a slightly different question on the same subject. What about dingy towing on a dolly? I assume there is a break-away for the dolly but what about the toad on the dolly? Given the frequent safety warnings from dolly manufacturers to check the straps, how does one stop a toad that has become disconnected from the dolly? I am considering dolly towing behind my Class C and want to be safe. Are there safety chains tying the toad to the dolly as well?

Yes, the dolly I had (Demco Kar Kaddy, about a 1993 model) did have a safety chain that was to be hooked to the chassis of the vehicle.
Keep in mind that hydraulic surge brakes have a breakaway built into the surge unit. Electric brakes, however, not only require a brake controller where the driver can reach it, but must have a battery on the dolly to actuate the brakes in the event of a breakaway. that battery (here in Montana, that is) must be capable of holding the electric brakes applied for at least 15 minutes.

The car on the dolly has the transmission in PARK. That locks the wheels. You don't need a separate breakaway brake for it.

I'm not trying to hijack this thread but I have a slightly different question on the same subject. What about dingy towing on a dolly? I assume there is a break-away for the dolly but what about the toad on the dolly? Given the frequent safety warnings from dolly manufacturers to check the straps, how does one stop a toad that has become disconnected from the dolly? I am considering dolly towing behind my Class C and want to be safe. Are there safety chains tying the toad to the dolly as well?

august west wrote:
I'm not trying to change your opinion, just trying to say ..I...believe it is necessary to be lawful and ...I... think it's common sense.

Montana makes it simpler:
MCA 61-1-101, (82) (a) "Trailer" means a vehicle, with or without motive power, other than a pole trailer, designed for carrying property and for being drawn by a motor vehicle and constructed so that no part of its weight rests on the towing vehicle.

Note that a "trailer" is not designed for carrying PEOPLE, only property!

Yes, I suppose it is just common sense to have a braking system on a towed vehicle, but that isn't the question; the question relates to LEGAL requirements. The ONLY way to find the answer to that question is to check the laws of every state you wish to travel in, then find out how fast you can stop your rig from 20 MPH on a clean, hard, dry, level surface. Many (if not most) states have a Braking Performance Law, AND it is in the FMVSS.
I have been idly researching this question of legality for over 15 years, and the ONLY state I have found that apparently has a law regarding braking a towed vehicle (other than a performance law) is North Carolina (GS 20-124 (f)). There is also a Braking Performance Requirement (GS 20-124 (e))

Nutinelse2do wrote:

23hotrodr wrote:
What are the legal requirements for a break away device on a dinghy?

If it is required in some states, where can I find this info and what states require such a device?

Thanks-- Mick

Here is a list that tells you all you need to know, by State.....
Towing Laws by State

As others have said, why take any chances?

Just looking at the Montana section of that list, there are so many errors that the list is totally useless! So many, in fact, that I wouldn't even try to enumerate them here!
I have yet to find a "List of Towing Laws" that is truly accurate. I wonder if there is one?

23hotrodr wrote:
What are the legal requirements for a break away device on a dinghy?

If it is required in some states, where can I find this info and what states require such a device?

Thanks-- Mick

Here is a list that tells you all you need to know, by State.....
Towing Laws by State

As others have said, why take any chances?

after modification, are they not designed to be drawn by another vehicle?

I'm not trying to change your opinion, just trying to say ..I...believe it is necessary to be lawful and ...I... think it's common sense.

"...designed for....being drawn by another motor vehicle."

NONE of the vehicles I have ever towed were designed to be "drawn by another motor vehicle". They ALL had to be modified for towing!