Transcontinental Gas Pipe Line Company, LLC submits tariff filing per 154.204: Releasable Secondary Capacity to be effective 5/1/2012 under RP12-571 Filing Type : 570

NORTH AMERICAN ENERGY STANDARDS BOARD 801 Travis, Suite 1675 Houston, Texas 77002 Phone: (713) 356-0060 Fax: (713) 356-0067 email: naesb@naesb.org Web Site Address: www.naesb.org September 18, 2012 Filed Electronically The Honorable Kimberly D. Bose Secretary Federal Energy Regulatory Commission 888 First Street N.E., Room 1A Washington, D.C. 20585 RE: Standards for Business Practices of Public Utilities (Docket No. RM 05-5 et al) Dear Ms. Bose: The North American Energy Standards Board ("NAESB") herewith submits this report to the Federal Energy Regulatory Commission ("FERC" or "Commission") regarding NAESBs activities from February 2009 to July 2012 with respect to Version 003 of the NAESB Wholesale Electric Quadrant (WEQ) standards. The NAESB WEQ Version 003 standards approved by the WEQ Executive Committee and ratified by the membership were published on July 31, 2012 and are referenced herein.1 An executive summary of the changes which resulted in Version 003 is included in the attached report, along with a description of the standards that were created or modified as part of Version 003. The standards in this submittal include modifications of existing standards or new standards to support FERC Order Nos. 8902, 890-A3, 890-B4 and 890-C,5 including the standards to support Network Integration Transmission Service on Open Access Same-Time Information System (OASIS), the previously filed standards to support Service Across Multiple Transmission Systems (SAMTS)6, standards to support the Commissions policy regarding rollover rights for redirects on a firm basis, standards that incorporate the functionality for transmission providers to credit redirect requests with the capacity of the parent reservation and standards modifications to support consistency across the OASIS related standards. In addition to the standards modifications and development of new standards related to 1 The NAESB standards referenced in this report are reasonably available to the public through multiple methods. To access the standards at no cost, NAESB will provide a limited copyright waiver for evaluation purposes using a product called Locked Lizard (http://www.locklizard.com). To request a waiver, please contact the NAESB office or follow the instructions in the following document: http://www.naesb.org/pdf/ordrform.pdf. 2 Preventing Undue Discrimination and Preference in Transmission Service, Order No. 890, 72 FR 12,266 (March 15, 2007), FERC Stats. & Regs. 31,241 (2007) (Order No. 890). 3 Preventing Undue Discrimination and Preference in Transmission Service, Order No. 890, 72 FR 12, 266 (March 15, 2007), FERC Stats. & Regs. 31, 241, order on rehg, Order No. 890-A, 73 FR 2,984 (January 16, 2008), FERC Stats. & Regs. 31,261 (2007) (Order No. 890-A). 4 Preventing Undue Discrimination and Preference in Transmission Service, Order No. 890, 72 FR 12, 266 (March 15, 2007), FERC Stats. & Regs. 31, 241, order on rehg, Order No. 890-A, 73 FR 2,984 (...