http://www.azdot.gov/mvd/faqs/scripts/F ... tion%20fee52) How are trailers registered?
Trailers registrations are determined by whether or not the trailer will be used for commercial purposes, and on the weight of the trailer (both as certified by the owner). A trailer may be eligible for a regular registration (one, two or five year) or a permanent registration.
Proof of ownership is not required for a homemade trailer less than $1,000 in value that is being titled for the first time. A registration from another state may be accepted as proof of ownership if that state does not title trailers.A physical inspection is required for homemade trailers.Permanent registration will be issued for the following:
Noncommercial trailers with a declared gross vehicle weight (GVW) of 10,000 lbs or less (initial one-time $125 registration fee, reduced to $75 if converting a current commercial trailer registration to noncommercial)
Trailers with a declared GVW of more than 10,001 lbs (one-time $800 registration fee). If previously registered in another state and the model year of the trailer is less than six years old (fee is reduced to $500), if at least six years old (fee is reduced to $195).
Permanent registration is a one-time fee and a PERM license plate tab is issued. There is no annual billing for vehicle license tax or registration fees. If the trailer has a special plate, only the fee for the plate will be billed annually.
The following are not eligible for permanent registration:
Travel trailer or camper/tent trailer
Commercial trailer with declared GVW of 10,000 pounds or less
Historic trailer that is designed for commercial use, but is not used for commercial purposes
See #4 and #5 above for more information on titling and registering.