Congress enacted the Highway Beautification Act to govern "the erection and maintenance of outdoor advertising signs" in areas next to interstate highways. The act requires each state to negotiate an agreement with the secretary of transportation regarding specifications for size, lighting, and spacing for billboards within 660 feet of the highways. The Federal Highway Administration issued a "Guidance" under the act to permit the use of digital billboards. The nonprofit group Scenic America, whose purpose is to "preserve and improve the visual character of America's communities and countryside," challenged the guidance, alleging that it was issued in violation of both the Administrative Procedure Act and the Highway Beautification Act. The defendants, comprising various transportations bodies, moved to dismiss, arguing that Scenic America did not have standing to sue.
What are the requirements for standing? What rationale will the court use to determine whether Scenic America has met each of the elements to establish standing?