Del. Code tit. 29, § 6936

No contract shall be awarded which includes the transportation, handling or storage of moneys, including lawful currency and coin, negotiable and nonnegotiable securities, stocks, bonds, coupons and things of unusual value unless the successful bidder shall have, at the time of the award of the contract, a valid license as required by Chapter 32 of Title 5. At the time of the submission of its bid, the bidder shall provide evidence of possession of such license or evidence that application for such license was made with the State Banking Commissioner and all fees required by such Chapter 32 of Title 5 had been paid.