Federal Energy Regulatory Commission

1 Federal Energy Regulatory Commission docket -Prefix List _____1 of 3 10/31/2014 Prefix Library Definition ACTIVE: STANDARD docket FORMAT AC Gen Requests for Approval by Chief Accountant AD Gen Administrative AI Gen Requests for Interpretations by Chief Accountant CD H Conduit Determination (< than 5 MW Facility) CE E, G, O, H, Gen Critical Energy Infrastructure Information CP G Certificates for Interstate Natural Gas Pipeline Companies DI H Declarations of Intention and Petitions for Declaratory Order DO O Depreciation and Related Matters Pertaining to Oil Pipelines DR E Depreciation Rates for Accounting Purposes DV H Power Site Lands, Restoration, Withdrawal and Vacation (Bureau of Land Management) EC E Applications of Electric Public Utilities for Authority to Sell, Lease, Purchase, Acquire, or Merge, and Applications for Determination of Jurisdiction EF E Federal Electric Rates for DOE's Power Administrations EG E Applications for Exempt Wholesale Generation Determinations EL E Miscellaneous Formal Filings Related to Electric Power EM G Emergency Natural Gas Sales, Transportation, Exchange Transactions and Replacement of Facilities EP H Power Site Reserves, Classifications and Designations, Right-of-Way or Lease of Federal Lands (Bureau of Land Management)

2 ER E Electric Rate Filings ES E Issuance of Securities and Assumption of Liabilities of Electric Utilities ET E Application and Exhibits for a Permit to Site New Electric Transmission Facilities or Modify Existing Facilities EX E Electric Discussion Items EY E Emergency Reports for Deviations from Standards of Conduct FA Gen Financial Audits by the Chief Accountant for Jurisdictional Companies FC E or G Foreign Utility Company Request GP G General Tracking docket Category for Matters Under the Natural Gas Policy Act GT G General Tariff Changes for Interstate Gas Pipelines GX G Gas Discussion Items HC E or G Certain Filings by Holding Companies under PUHCA IN Gen Investigations Instituted by OGC-Enforcement IS O Investigations and Suspensions into Rates, Fares, Charges & Practices of Oil P/Ls JR H Jurisdictional Reviews of Licensed Projects LA E Order 697-C Site Acquisition Quarterly Reports LP H Lease of Power Privilege (Bureau of Reclamation) MC H Mining Claims for Locatable Minerals (Bureau of Land Management) MD E, G Mediation and Arbitration MG G Marketing Affiliates Non-Tariff General Filings under Order No.

3 497 Federal Energy Regulatory Commission docket -Prefix List _____2 of 3 10/31/2014 ML H Mineral Leases Usually Oil & Gas (Bureau of Land Management) MO E State of the Market Reports MT G Tariff Filings under Order No. 497 NJ E Non-Jurisdictional / Electric NL E, G, O No-Action Letter NP E Notice of Penalty NR Gen News Releases OA E Open Access Transmission Tariffs OR O Oil Pipeline Rate Cases OT O Oil Pipeline Tariffs PA E, G, O, H, Gen Audits other than financial audits by the Chief Accountant PF G Pre-Filing NEPA Activities for Proposed Gas Pipelines PH E or G Exemption from or Waiver of Regulation as Holding Company (FERC-65A [Exemption Notification] and FERC-65B [Waiver Notification]) PL Gen, RM General Policy Cases PR G Petitions for Rate Approval for Transportation of Natural Gas under NGPA PT E Prefilling Activity for a Permit to Site New Electric Transmission Facilities or Modify Existing Facilities QF E Qualifying Status of Cogeneration and Small Power Production Facilities QM E Relief from, or Reinstatement of, Mandatory Purchase or Sell Requirement between Utility and Qualifying Facility, as mandated by the Energy Policy Act of 2005 RA G, O Appeals form Denial of Requests for Adjustments Issued by Economic Regulatory Administration, DOE RC E Compliance and Enforcement of Reliability Standards RD E Electric Reliability Standards RM Gen, RM Rulemaking Proceedings RO G, O Appeals from Remedial Orders Issued by Economic Regulatory Administration.

4 DOE RP G Rates for Interstate Natural Gas Pipeline Companies RR E ERO Rules and Organizational Filings RS G Restructuring Gas Cases under Order No. 636 RT E Electric Rate Filings - Rate Transmission SA G Staff Adjustments under Section 502 of NGPA SC E Stranded Costs / Electric TC G Tariff Curtailments of Interstate Natural Gas Pipelines TF G Flexible Tracking Adjustments not Accompanied by Quarterly or Annual PGA Filings TM G Miscellaneous Tracking Adjustments not Accompanied by Quarterly or Annual PGA Filings Federal Energy Regulatory Commission docket -Prefix List _____3 of 3 10/31/2014 TQ G Quarterly Tracking Filings and Out-of-Cycle PGA Filings of Interstate Natural Gas Pipelines TS E, G Transmission Standards TX E Transmission Services under Section 211 of the Federal Power Act UL H Unlicensed Hydroelectric Projects ZZ E or G Tracking docket for Certain Non-Docketed Submissions ACTIVE.

5 NON-STANDARD docket FORMAT HB H Headwater Benefits Related to Hydroelectric Projects IC Gen Information Collections - Public Involvement on the Development of the Commission 's Information Collection Requirements Prior to OMB Approval ID E Interlocking Directorates for Electric Utilities P H Hydropower Projects DISCONTINUED AR G Area Rate Proceedings - Independent Natural Gas Producers CI G Certificates for Small Independent Natural Gas Producers & Marketers CS G Certificates for Small Independent Natural Gas Producers DA H Bureau of Land Management - Power Site Determinations (Replaced by DV, EP, MC, and ML prefixes) E- Gen All Electric Cases (Replaced by ER, ES, EL, etc. prefixes) FS O Fourth Section Applications of Oil Pipelines G- G Gas Cases - Used Prior to 1960 IR E Requests for Waiver of PURPA Regulations IT E International Transmission - Electric JD G, O Well Category Determinations by State and Federal Jurisdictional Agencies PD O Depreciation and Related Matters Pertaining to Oil Pipelines (prior to March 21, 1989) PV O Oil Pipeline Valuation Rates R- Gen Rulemakings (Prior to Formation of RM Prefix - Fiscal Year 1974) RE E Requests for Extensions of Time or Exemptions under PURPA RI G, O Rates for Independent Natural Gas Producers SP O Special Permission Application or Waivers for Oil Pipelines ST G Transportation Annual Reports / Gas TA G Annual Tracking Filings of Interstate Natural Gas Pipelines