The mark consists of the wording "PET HEALTH EXPRESS', below which are the words, in smaller font, "AFFORDABLE VETERINARY CARE", all in black below a two-toned blue main body of a locomotive, with a red dog paw print tilted to the right located on the side of the main blue body of the locomotive, with an orange front grill, with two large red wheel treads surrounding a white hub connected by an orange bar, with two smaller red wheel treads surrounding a white hub, with an orange and red smokestack, a puff of white smoke above the smokestack, a two-toned orange engineer's cab with a white window, carrying a brown dog with a red collar and silver tag, and an orange cat, each wearing blue hats, each with white eyes, black pupils and black eyebrows, with all elements of the locomotive shaded or outlined in grey or black. The background of the mark is meant to be transparent to the surface upon which the mark is placed, and is not part of the mark.