General Information Tax Year 2016 v1.0 Schema and Business Rule packages have been posted to irs.gov. These Schema and Business Rule packages are not valid for AATS or Production. XML Schemas The "Diff" File for the ACA Information Returns in the schema package identifies the changes from the Tax Year 2015 v8.0 schema to the Tax Year 2016 v1.0 schema. Please see Known Issues document for schema information. Business Rules The ACA Information Returns Tax Year 2016 v1.0 Business Rules are available in two formats that contain identical information: Adobe (.pdf) and Comma Separated Values (.csv). Error codes are not being used for forms in TY2016, so a FormDataErrorFile is not included in the 2016 v1.0 package. Please send any comments or feedback to the AIR Mailbox.