Here in California you only need a solid attaching point (with links of some kind on either end) if you are towing down the freeway for further than the next exit. http://www.dmv.ca.gov/pubs/vctop/d13/vc29006.htm
Around town you can tow with a string if you wanted to.http://www.dmv.ca.gov/pubs/vctop/d13/vc29005.htm
No way, i always figured that was a huge no-no.
So a tow bar would be needed on the freeway for more than one exit? Is that what they mean by rigid?
Cool to know you can tow around town wiht a rope though, always figured i'd do it in a pinch, but never thought it was legal.
Guess you learn something new everyday!