What's New: 6/24/08: Letter from PHMSA to AGA; Re: Use of ECDA on Cased Pipelines for Completion of Baseline Assessments posted on the Key Documents page. 6/9/08: Comparison of US and Canadian Transmission Pipeline Consensus Standards posted on the Technical Reports page. 5/27/08: Performance measure reports for 2007 are now available. 1/7/08: Gas IM inspection protocols have been revised. Updated documents are posted and available for download from the Key Documents page. 11/19/07: Revision 1, dated 11/1/07, of the 18 Check Points for LRGWUT notifications has been posted here under Notifications. These revisions have not changed any of the 18 Check Points but some of the guidance material has been updated based on discussions with industry experts, GWUT manufacturers, and GWUT service providers. 7/21/07: Minor adjustments have been made to the Gas IM inspection protocols. Updated documents are posted and available for download from the Key Documents page. 7/17/07: An amendment to the Gas Integrity Management Rule has been posted on the Key Documents page. 6/20/07: ADB-07-01: Senior Executive Signature and Certification of IM Program Performance Reports has been posted on the Key Documents page. 6/14/07: GAO Reports on Gas Integrity Management have been posted on the Key Documents page. 6/14/07: Report on Determining PIR for Non-flammable Gases posted on the Technical Reports page. 3/25/07: Performance measure reports for 2006 are now available. 3/13/2007: FAQ 90 has been updated. 3/12/2007: Revised review checklist for use of long-range guided wave ultrasound as assessment method. 1/29/2007: Minor adjustments have been made to the Gas IM inspection protocols. Updated documents are posted and available for download from the 'Key Documents' page. 12/12/2006: FAQ 237 has been posted. 10/02/2006: FAQ 174 has been updated. 08/30/2006: New FAQ 235 has been posted. 08/14/2006: FAQs 22, 68, 90, 174, and 215 have been updated. 08/02/2006: FAQs 27, 238, 239, 240, 241, 242, and 243 have been updated. 05/03/2006: FAQs 40, 42, 43, 133, 207, and 245 have been updated.