18 Del. Admin. Code § 606-3.0
To the extent necessary, the definitions contained in 21 Del.C. § 101 shall apply to all terms not otherwise defined in Section 3.0 of this regulation. The following words and terms, when used in this regulation, shall have the following meaning unless the context in which they are used clearly indicates otherwise:
"Commercial auto coverage", "commercial vehicle coverage" or "commercial lines policy" means any coverage provided to an insured, regardless of the number of vehicles or entities covered, under a commercial auto, garage, or truckers coverage form or rated from either a commercial manual or rating rule as filed and approved by the Delaware Department of Insurance. Vehicle type and ownership are not necessarily the primary factors in either underwriting the coverage or rating the coverage. The rating may be subject to individual risk characteristics including but not limited to experience rating, schedule rating, loss rating or deductible rating.
"Fleet" means five or more vehicles under single ownership or lease used for commercial purposes.
"Personal lines auto coverage," "personal lines vehicle coverage" or "personal lines policy" means any automobile insurance or insurance policy that does not fall within commercial lines.
18 Del. Admin. Code § 606-3.0
23 DE Reg. 929 (5/1/2020) (Final)