PUC § 7578

No contract of the type provided for in this article shall be valid as against any subsequent judgment creditor or any subsequent bona fide purchaser for value and without notice, unless all of the following conditions are met:

(a) The contract is evidenced by an instrument executed by the parties and duly acknowledged by the vendee, lessee, or bailee, as the case may be, or duly proved before some person authorized by law to take acknowledgments of deeds, and in the same manner as deeds are acknowledged or proved.

(b) Each car or locomotive engine so sold, leased, or hired, or contracted to be sold, leased, or hired has the name of the vendor, lessor, or bailor plainly marked in letters not less than one inch in size on each side thereof, followed by the word “owner,” or “lessor,” or “bailor,” as the case may be.