Noncommercial trailers, such as utility, farm and boat trailers, are not titled or registered in Oklahoma. Farm trailers may, at the option of the owner, be registered only (no title issued ) for an annual fee of $9.00
On the other hand commercial trailers are registered for an initial fee of $48.00 and an annual renewal fee of $4.00
The no registration requirement makes trailers an easy target for thieves .