The fiduciary chain has been designated as a contract by which the parties agree to electronic data exchange and the protection of transmitted data. (The security rule did not specify the nature of these transactions.) The sender and recipient are required to respect the integrity and confidentiality of the information transmitted and to depend on each other. Several bipartisan contracts may be involved in deferring information from the original game to the final host game. For example, a supplier may enter into a contract with a clearing house to submit claims to the clearing house. The clearing house, on the other hand, may enter into a contract with another clearing house or with a payer with respect to the subsequent transmission of these claims. The agreements provide for the maintenance of the same level of security on all links in the chain when information is moved from one organization to another. The fiduciary chain has been identified in the security rule proposed by HIPAA. If identifiable health information is treated with a third party, the safety rule would require the parties to sign a fiduciary chain. The novelty of changing the data protection rule is also the request for a data usage agreement when the company in question discloses to another company a limited set of health protection data. The limited data set is protected health information, many but not all of which have been deleted to de-deter the data. The agreement on the use of data is very similar to the counterparty contract, in which the recipient of the data set agrees to limit the use of the data for the purposes for which it was granted to ensure data security and not to identify or use the information to contact a person. There are specific requirements for designation as OHCA.