The Tax Year 2022 Form 8849 Modernized e-File (MeF) Assurance Testing System (ATS) information is contained below. If you support these Forms, you will need to contact the e-Help Desk for testing. Please monitor this page for any ATS Scenario updates. TY 2022 Form 8849 MeF ATS Scenarios: 8849 MeF ATS Scenario 1 PDF 8849 MeF ATS Scenario 2 PDF 8849 MeF ATS Scenario 3 PDF 8849 MeF ATS Scenario 4 PDF 8849 MeF ATS Scenario 5 PDF 8849 MeF ATS Scenario 6 PDF For information and questions regarding ATS, please contact the e-help Desk at 1-866-255-0654. Modernized e-File (MeF) Assurance Testing System (ATS) Updates Page