Farragut Square (17th and I sts., NW), where you'll find Basil Thyme, Burritos on the Run, Carnivore BBQ, DC Empanadas, Halal Grill, Yellow Vendor; Cajunators and Cheesecake Truck (nearby at 20th and L).
L'Enfant (Sixth St. and Maryland Ave., SW), where you'll find Amorini Panini, Cap Mac, DC Slices, Stix, First Yellow Vendor, Fojol Bros. (Merlindia), Kabob Bites, Lily Pad on the Run, Rolls on Rolls, Tasty Fried, Big Cheese, and Wassub.
Montgomery County, where you'll find Cole's Palette (Silver Spring), Corned Beef King (Rockville), Go Fish Truck (Rockville City Farm Market), Thatsalata (Silver Spring), and Cupcake Blvd (Rockville).
NoMa (First and M sts., NE), where you'll find Pi Truck.
Northern Virginia, where you'll find Choupi Crepes, District Taco, Seoul Food, Sinplicity Ice Cream (Rosslyn), Curbside Cupcakes (Pentagon City), Hot People Food (Ballston), Lemongrass Truck (Court House), Bada Bing (Crystal City), and Uncle Paulie (Tysons).