(a) OPM shall establish periodic agreements with the Social Security Administration regarding Postal Service annuitants and their eligible family members for purposes of:

(1) Determining whether Postal Service Medicare covered annuitants and Medicare covered members of family of those annuitants satisfy the Medicare enrollment requirements at § 890.1604; and

(2) Determining which Postal Service annuitants and family members of such annuitants may be eligible to enroll in Medicare Part B under section 1837(o) of the Social Security Act.

(b) OPM shall identify Postal Service annuitants and their eligible family members who may be covered Medicare individuals from OPM's stored enrollment data. OPM will provide identifying information about these annuitants and their eligible family members to the Social Security Administration via secure data transfer for the purposes as outlined in the periodic agreements.

(c) OPM shall establish periodic agreements with the Department of Health and Human Services, the United States Postal Service, the Department of Veterans Affairs, and other Federal agencies as needed to share data and information as is necessary to carry out 5 U.S.C. 8903c and this subpart.

(d) These agreements shall specify, at a minimum, the purpose and legal authorities that govern the elements of information or data to be shared, the process that will be used for sharing the information or data, the frequency of sharing the information and data, and the permitted uses and redisclosure of the information and data.

(e) The agreements established under paragraph (c) of this section shall, to the greatest extent practicable, ensure that data is shared for the following purposes:

(1) To determine which Postal Service employees or Postal Service annuitants may be eligible to enroll in a PSHB plan; and which family members may be covered;

(2) To determine which Postal Service Medicare covered annuitants and their Medicare covered members of family may be subject to the enrollment requirements described in § 890.1604; and

(3) To create a system for data sharing as needed for carrying out 5 U.S.C. 8903c and this subpart.