Justice Scalia developed a consistent approach to questions of reviewability: roughly, the idea that “general programs” and “general policies” are to be excluded from judicial review, and even general and legally binding agency rules may or may not be reviewable before enforcement. On this approach, the proper business of courts is to review specific applications of agency rules to particular parties.
Reviewability and the "Law of Rules": An Essay in Honor of Justice Scalia,
Notre Dame L. Rev.
Available at: https://scholarship.law.nd.edu/ndlr/vol92/iss5/12