Del. Code tit. 24, § 1811

The amount set by the Division for each fee imposed under this chapter shall approximate and reasonably reflect the costs necessary to defray the expenses of the Board, as well as the proportional expenses incurred by the Division in its services on behalf of the Board. A separate fee may be charged for each service or activity, but a fee shall not be charged unless the service or activity is specified in this chapter. The application fee may not be combined with any other fee. At the beginning of each licensure biennium, the Division, or another state agency acting in its behalf, shall compute the fees for each separate service or activity for the licensure biennium.