The Board shall issue model clauses for optional use by financial institutions to facilitate compliance with the disclosure requirements of section
1693c of this title and to aid consumers in understanding the rights and responsibilities of participants in electronic fund transfers by utilizing readily understandable language. Such model clauses shall be adopted after notice duly given in the Federal Register and opportunity for public comment in accordance with section
553 of title
5. With respect to the disclosures required by section
1693c
(a)(3) and (4) of this title, the Board shall take account of variations in the services and charges under different electronic fund transfer systems and, as appropriate, shall issue alternative model clauses for disclosure of these differing account terms.