 These works also reviewed misunderstandings related to the actual number of fire related deaths related to the fuel system design, "wild and unsupported claims asserted in "Pinto Madness" and elsewhere", the facts of the related legal cases, "Grimshaw vs Ford Motor Company" and "State of Indiana vs Ford Motor Company", the applicable safety standards at the time of design, and the nature of the NHTSA investigations and subsequent vehicle recalls.The design of the Pinto fuel system was complicated by the uncertain regulatory environment during the development period.The first federal standard for automotive fuel system safety, passed in 1967, known as Section 301 in the Federal Motor Vehicle Safety Standards, initially only considered front impacts.