In the U.S. and in most states the state police who are not mechanical engineers, welders or builders in any way are the ones who approve home made trailers.
They are only going to catch stuff that is obviously missing, defective or clearly just flat out wrong.
The disastrous trailer accidents I found appear to be caused by people who lack the knowledge to properly attach the trailer to the tow vehicle, load a trailer or attach a wheel or wheel bearings.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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