17 Del. C. § 1121

Subject to § 1122 of this title, no outdoor advertising sign, display or device, any part of the advertising, informative or attention attracting contents of which is visible from the main traveled way of a highway of the interstate system or primary system, shall be erected or maintained within a controlled area, unless it shall come within 1 or more of the following categories:

(1) Directional and other official signs and notices, which signs and notices shall include, but not be limited to, signs and notices pertaining to natural wonders, scenic and historic attractions as authorized or required by the laws of this State;

(2) Signs, displays and devices advertising the sale or lease of the real property upon which they are located;

(3) Signs, displays and devices advertising activities conducted on the real property upon which they are located;

(4) Signs, displays and devices located either:

a. In controlled areas adjacent to the interstate system and within the boundaries of incorporated municipalities, as such boundaries existed on September 21, 1959, wherein the use of real property is subject to municipal regulation and control, which are zoned industrial or commercial; or

b. In other controlled areas adjacent to the interstate system zoned industrial or commercial which were zoned industrial or commercial as of September 21, 1959;

(5) Signs, displays and devices located in controlled areas adjacent to highways of the primary system which are zoned industrial or commercial;

(6) Signs, displays and devices located in unzoned commercial and industrial controlled areas adjacent to highways of the primary system and defined by regulations to be promulgated by the Department;

(7) Any school bus waiting shelter displaying a sign provided such sign does not exceed 32 square feet in area and with a limit of 2 signs per shelter. Should the State Department of Education determine that there is no longer a need for a waiting shelter at its present location, the exemption provided by this paragraph shall then terminate.

Such outdoor advertising signs, displays and devices as are permitted in controlled areas under this section shall be erected and maintained only in conformity with such applicable regulations as may be promulgated by the Department under § 1103 of this title.