(a) In-network negotiated rate file schema. For the "in-network-rates" file published under this subchapter, an issuer must include data elements consistent with the In-Network File Schema contained in Machine-Readable Files: Data Schemas (version 1.1), published on the department's website.(b) Out-of-network allowed amount file schema. For the "allowed-amounts" file published under this subchapter, an issuer must include data elements consistent with the Out-of-Network Allowed Amount File Schema contained in Machine-Readable Files: Data Schemas (version 1.1), published on the department's website.(c) In-network prescription drugs file schema. For the "prescription-drugs" file published under this subchapter, an issuer must include data elements consistent with the Rx File Schema contained in Machine-Readable Files: Data Schemas (version 1.1), published on the department's website.(d) Table of contents file schema. If an issuer chooses to include multiple plans in a single file, as permitted under §21.5502(h) of this title (relating to Form and Method of Publishing Machine-Readable Files), the issuer must publish a "table-of-contents" file, consistent with the Table of Contents File Schema contained in Machine-Readable Files: Data Schemas (version 1.1), published on the department's website.(e) Provider reference file schema. If an issuer chooses to include an external file of provider references, the issuer must include a "Provider Reference" file, consistent with the Provider Reference File Schema contained in the Machine-Readable Files: Data Schemas (version 1.1), published on the department's website.