In further research, the manufacturer must now weigh the trailer. The reason is they have to now supply an accurate number for the CCC and it must be posted on the trailer. This number will not include a full load of propane -- that is included in the dry weight because it is "fuel". So what the manufacturer does is weigh each trailer, subtract that from the GVWR they are stating, and subtract from that the number of pounds of propane it should carry (they don't put propane in from the factory), and the result is the CCC they will post for the unit. This will take into account any differences in options.
The dealer is required to put modified information on the trailer (there are rules as to how they have to post it) if they change the weight by more than a certain amount. The dealer supplies the battery, but I think the weight of it is less than the limit. They will typically put in a group 24 wet battery. They weigh less than 50 pounds.
So the interesting thing is when you look at them on the lot. The CCC will typically vary from one unit to the next within the same model, and it will typically be less than the CCC listed in the brochure -- dealers rarely have units sitting on their lots with no options on them.
