; (B) summarizes the evidence and data on which the agency will base the guidance; (C) identifies the costs and benefits (including all costs to be considered during a rule making under section 553(b) of this title) of conduct conforming to such guidance and assures that such benefits justify such costs; and (D) describes alternatives to such guidance and their costs and benefits (including all costs to be considered during a rule making under section 553(b) of this title) and explains why the agency rejected those alternatives; and (2) confer with the Administrator of the Office of Information and Regulatory Affairs on the issuance of such guidance to assure that the guidance is reasonable, understandable, consistent with relevant statutory and regulatory provisions and requirements or practices of other agencies, does not produce costs that are unjustified by the guidance’s benefits, and is otherwise appropriate. Upon issuing major guidance, or guidance that involves a novel legal or policy issue arising out of statutory mandates, the agency shall publish the documentation required by subparagraph (1) by electronic means and otherwise. (b) Agency guidance— (1) is not legally binding and may not be relied upon by an agency as legal grounds for agency action; (2) shall state in a plain, prominent and permanent manner that it is not legally binding