This X12 Transaction Set contains the format and establishes the data contents of the Environmental Compliance Reporting Transaction Set (179) for use within the context of an Electronic Data Interchange (EDI) environment. The transaction set can be used by commercial and public facilities to submit environmental compliance reports to the Environmental Protection Agency and state and local environmental agencies. The transaction set can also be used to forward data or exchange environmental compliance data amongst environmental agencies at all levels of government, and to return status to the submitter.