The Dispute File Specifications are guidelines for providing standard paper and mechanized file layouts for facility, usage, resale, UNE and other invoice disputes except for PICC, which follows the PICC Dispute File Specifications. Implementation of these outputs such as timing and media for the mechanized file layouts (CD-ROM, Diskette, e-mail, etc.) used to provide this information will be negotiated between the individual customers and providers. While it is anticipated that the data outlined in this document will be provided, as applicable, by the customer and accepted by the provider, it is also recognized that the provision of additional data may be required for dispute resolution.