Del. Code tit. 21 § 4603
Any person, corporation, agency, association, club, department or carrier possessing any master key pursuant to this chapter shall, before May 30, 1969, and every 6 months thereafter, submit to the Secretary of Public Safety of this State a list describing all master keys which it possesses. Any person, corporation, agency, association, club, department or carrier which submits a list pursuant to this section which list does not contain any master key which was described in any previous list to the Secretary of Public Safety shall, in writing, notify the Secretary of Public Safety of the reason for omission. Whoever knowingly fails to comply with this section shall be fined not more than $2,300, or imprisoned not more than 5 years or both.
21 Del. C. § 4603