towing a boat behind a fifth wheel

i'm looking into buying a fifth wheel and im wondering what the longest you can be in california ive tried to search and keep finding diffrent answers any info would help
thanks

ive been told it is 85 1/2 ft. and something like the last axle behind the truck couldnt be any further back than 28 ft. i researched it awhile back but my fifth wheel and boat combo is too long. i believe with a 31 ft trailer and a 23 ft boat you should be just fine. also remember that the swim step also counts as overall footage. hope this helps.

68' cali 72' nv you also need a r endorsment and a j endorsment if over 10,000 pound or a com. lic.

Pull trlr (5th wheel) can't be more then 28 1/2 feet .............I've heard 70 and 75 as total length's but I'll wait and ask when I get stopped.

And you need a certain classification on your license.

But I have a commercial license so I have triple doubles certification .....So I'm not sure of the procedure to add the class onto a regular license.

I pulled my 25 ft trlr and 21 ft boat a couple weeks ago and it was way easier than I thought it would be ! Also easy to back up with wich I was worried about.

Jeff is correct 75' if the center trailer is 28'6" or less. If the center trailer is longer than 28'6" the length drops to 65'.

thanks for all info