Art car recent years the festival has been forced to limit the number of vehicles on the playa. As such they have restricted the vehicles that are licensed to what they are now calling "mutant vehicles". There has been some confusion within the Burning Man and Art Car communities over these two terms, with some believing the terms are simply synonyms. According to art car artist and Art Car Fest organizer Philo Northrup, art cars are "street-legal vehicles that have been permanently transformed into mobile sculptures". According to the Burning Man DMV ("Department of Mutant Vehicles"), Mutant Vehicles are "'art on wheels':
Form and document creation are special strategies to writing the form or document. Standard expository models are: "nonfiction print documents that (1) are primarily informational rather than expressive; (2) are intended to be read linearly (broadly speaking, from beginning to end); and (3) reveal structure explicitly with at least one heading level but very often more." If a form being created fits within the SE model, there are three main strategies to be employed when creating it. Gillian Harvey, a partner and senior designer at Plumbheavy Design Inc., a company that does graphic design and information design, has several recommendations for technical communicators regarding