2 Del. Admin. Code § 2257
Whereas the number of non-resident owners requesting a "courtesy" vehicle safety inspection has increased tremendously over the last few years; and
Whereas the costs to the State of Delaware to provide such inspections have likewise increased over the last few years; and
Whereas State agencies are required to bill other State agencies for costs of services, thereby showing the State General Assembly's implied intent to collect payment for services;
Effective January 1, 1977, a $4.00 fee is to be assessed for each courtesy safety inspection provided for a vehicle which is registered in another state and which is not going to be registered in Delaware.
This regulation only applies to on-site inspections.