Issued by: Centers for Medicare & Medicaid Services (CMS)

Issue Date: January 30, 2019

Program Area: CSR Reconciliation (CSR)

Question: Will CMS require an issuer to zip attestation forms if the issuer needs to submit only one (1) attestation form?

Answer: Issuers should zip their attestation forms when submitting them via EFT. (Note: This does not apply to Attestation Form D, which should be submitted to a shared CMS mailbox). Even if an issuer is only submitting one (1) attestation form via EFT, the attestation form should still be zipped. Do not password-protect ZIP files. Data files should not be zipped.

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