2 Del. Admin. Code § 2263
The document fee required pursuant to 30Del.C. §3002(a) shall be assessed on all mobile homes/house trailers upon the issuance of a certificate of title.
If a mobile home/house trailer has previously been one of the following, then the structure need not be considered as a mobile home/house trailer for purposes of 21 Del.C. §2302(e) and 30 Del.C. §3002(a).
If the applicant/owner desires a certificate of title even though the above qualifications are met, then the document fee required pursuant to 30 Del.C. §3002(a) shall be paid at the time the new title is issued.