; (v) enrollment, eligibility, and coordination of benefits under title XVIII with respect to populations, for whom there are special considerations, such as residents of Puerto Rico and veterans; and (vi) online resources and toll-free telephone numbers of the Social Security Administration and the Centers for Medicare & Medicaid Services (including 1–800–MEDICARE and the national toll-free number of the Social Security Administration) that provide information on eligibility for benefits under the Medicare program under title XVIII. (C) Development of notice (i) In general The Secretary, in coordination with the Commissioner of Social Security, and taking into consideration information collected pursuant to clause (ii), shall, not later than 12 months after the last day of the period for the request of information described in clause (ii), develop the notice to be provided pursuant to subparagraph (A). (ii) Request for information Not later than 6 months after the date of the enactment of this paragraph, the Secretary shall request written information, including recommendations, from stakeholders (including the groups described in subparagraph (D)) on the information to be included in the notice. (iii) Notice improvement Beginning 4 years after the date of the enactment of this paragraph, and not less than once every 2 years thereafter, the Secretary, in coordination with the Commissioner of Social Security, shall— (I) review the content of the notice to be provided under subparagraph (A); (II) request written information, including recommendations, on such notice through a request for information process as described in clause (ii)