The following actions require Federal Highway Administration approval:

1. (1) New freeway-to-freeway interchange;
2. (2) New service interchanges providing access between a nonfreeway local roadway network (arterial, collector, or local road) and the freeway;

3. (3) Modification of freeway-to-freeway interchange configuration, for example:

   1. (A) Adding new ramp or ramps;
   2. (B) Abandoning/removing ramp or ramps;
   3. (C) Completing basic movements; and
   4. (D) Reconstruction of structures;
4. (4) New partial interchanges or new ramps to-from continuous frontage roads that create a partial interchange;
5. (5) Modification of existing interchange configuration, such as adding a loop to a diamond interchange;
6. (6) Completion of basic movements at partial interchange, for example, completing a partial diamond interchange by adding a ramp;
7. (7) Locked gate access, e.g., access via locked gates for emergency response;
8. (8) Abandonment of ramps or interchanges;
9. (9) Access to special use lanes such as HOV, high occupancy toll, or truck only lanes (from the street network) within the freeway system should be treated similarly to any other access;
10. (10) Relocation of a ramp terminus to a different local road; and
11. (11) Changes in operation of managed-lane access to general-purpose access to the freeway.

Codification Notes: “HOV” means high occupancy vehicle.