401 WQC Section 401 Water Quality Certification


A G&T Generation of Transmission Cooperative

A&G Administrative and General Expenses

AAQS Ambient Air Quality Standards

ABF Aquatic Base Flow

AC Alternating current

ACA Annual Charge Adjustment

ACE Area Control Error

ACHP Advisory Council on Historic Preservation

ACRS Accelerated Cost Recovery System

ADIT Accumulated Deferred Income Taxes

ADITC Accumulated Deferred Investment Tax Credit

ADR Asset Depreciation Range or Alternative Dispute Resolution

AFE Authority for Expenditure or Authorization for Expenditure

AFUDC Allowance for Funds Used During Construction

AGA American Gas Association

AGC Automatic Generation Control

AGD Associated Gas Distributors

AI Agricultural Inspector

AIMA Agricultural Impact Mitigation Agreement

AIRFA American Indian Religious Freedom Act

ALJ Administrative Law Judge

AMI Advance Metering Infrastructure

ANGTA Alaskan Natural Gas Transportation Act of 1976

ANGTS Alaskan Natural Gas Transportation System

ANSI American National Standars Institute

AOS Authorized Overrun Service

APA Administrative Procedure Act or Alaska Power Administration

APE Area of potential effect

API The American Petroleum Institute

APPA American Public Power Association

AQCR Air Quality Control Region

ARPA Archeological Resources Protection Act

A/S Ancillary Services

ASAL Atlantic salmon population model developed by FWS

ASCC (Affiliate) Alaskan System Coordination Council

ASRSC Atlantic Sea-Run Salmon Commission

ATC Available Transfer Capability

Back to Top


BA Balancing Authority

BA Biological Assessment

BACT Best Available Control Technology

BCD Barrels per Calendar Day

Bcf Billion Cubic Feet

BCP Blackstart Capability Plan

BES Bulk Electric System

BIA Bureau of Indian Affairs

BLM Bureau of Land Management

BLM Bureau of Land Management, The Dept. of Interior

BPA Bonneville Power Administration

BPR Bureau of Parks and Recreation

BPS Bulk-Power System

BS&W Bottom sediments of water

BTU British Thermal Unit

BuRec Bureau of Reclamation

Back to Top


CAA Clean Air Act

CAISO California Independent System Operator Corporation

CAP Capacity Market Programs

CAPM Capital Asset Pricing Model

CBM Capacity Benefit Margin

CD Contract Demand

CD Certificate of Deposit

CEO Chief Executive Officer

CEQ Council on Environmental Quality

CERCLA Comprehensive Environmental Response, Compensation, and Liability Act

CERCLIS Comprehensive Environmental Response, Compensation, and Liability Information System

Certificate Certificate of Public Convenience and Necessity

cf Cubic Feet

Cf Compare

CfD Contracts for Differences

CFO Chief Financial Officer

CFR Code of Federal Regulations

CFTC Commodity Future Trade Commission

cfs Cubic Feet Per Second

CIAC Contribution of Aid of Construction

CMVE Competitive Market Value Estimate

CNG Compressed Natural Gas

CO Carbon Monoxide

CO2 Carbon Dioxide

COC Cost of Capital

COO Chief Operating Officer

COE U.S. Army Corps of Engineers

CP Coincident Peak

CP Certificate Proceeding

CPI Consumer Price Index

CPP Critical Peak Pricing

cps Cycles Per Second

CPS Control Performance Standard

CRMP Cultural Resource Management Plans

CRP Conservation Reserve Program

CRT Capacity Reservation Tariff

CSP Curtailment Service Provider

CWA Clean Water Act

CWIP Construction Work In Progress

CZMA Coastal Zone Management Act

Back to Top


D.B.A. Doing business as

dBA Decibles on the A-weighted scale

DBH Diameter Breast Height

dc Direct Current

DCLM Direct Control Load Management

DCS Disturbance Control Standard

Decontrol Act Natural Gas Wellhead Decontrol Act

DEIS Draft Environmental Impact Statement

DF Distribution Factor

DFG Department of Fish and Game

DLC Direct Load Control

DME Disturbance Monitoring Equipment

DO Dissolved Oxygen

DOE Department of Energy

DOE Act Department of Energy Organization Act

DOE/FE Department of Energy - Office of Fossil Energy

DOI Department of Interior

DOT Department of Transportation

DR Demand Response

DSM Demand-Side Management

Dth Dekatherm (equivalent to 1 MMBTU)

Back to Top


e.g. Exempli gratia

E&D Expenses Exploration and development expenses

EA Environmental Assessment

EBB Electronic Bulletin Board

ECAR East Central Area Reliability Coordination Agreement

ECPA Electric Consumers Protection Act

EDRP Emergency Demand Response Program

EEI Edison Electric Institute

EHV Extra High Voltage

EI Environmental Inspector

EIA Energy Information Administration of the Department of Energy

EIS Environmental Impact Statement

ELCON Electricity Consumers Resources Council

EMF Electro Magnetic Fields

EPA Environmental Protection Act

EPAct National Energy Policy Act of 1992

EPAct 2005 Energy Policy Act of 2005

EPRI Electric Power Research Institute

EPS Earnings Per Share

EQR Electric Quarterly Report

ERA Economic Regulatory Administration (now called Fossil Energy FE)

ERCOT Electric Reliability Council of Texas

ERO Electric Reliability Organization

ERTA Economic Recovery Tax Act of 1981

ESA Endangered Species Act

ESCO Efficiency Service Company

ESOT Employee Stock Ownership Trust

EWG Exempt Wholesale Generator

Back to Top


FAC Fuel Adjustment Clause

FACTS Flexible Alternating Current Transmission System

FASB The Financial Accounting Standards Board

FCITC First Contingency Incremental Transfer Capability

FEIS Final Environmental Impact Statement

FELCC Firm Energy Load Carrying Capability

FERC or Commission Federal Energy Regulatory Commission

FIFO First-in, first-out

Fishway Fish Ladder

FLPMA Federal Land Policy and Management Act

FOIA Freedom of Information Act

FONSI Finding of no significant impact

FPA Federal Power Act

FPC Federal Power Commission

FPS Firm peaking service

FR Full Requirements

FR or F.R. or Fed Reg Federal Register

FRCC Florida Reliability Coordinating Council

FS Forest Service

FSO4 Final Standard Offer Four

FT Firm Transportation Service

FTC Federal Trade Commission

FTR Firm Transmission Rights

FTS Firm transportation service

FUA The Fuel Use Act

FUCO Foreign Utility Company

FWPA Federal Water Power Act

FWS U.S. Fish and Wildlife Service

Back to Top


GAAP Generally Accepted Accounting Principles

GATT General Agreement on Tariffs and Trade

Genco Generation Company

GIC Gas Inventory Charge

GISB Gas Industry Standards Board (now NAESB)

GLDF Generator-to-Load Distribution Factor

GRI Gas Research Institute

Gridco Transmission Company (a Transco)

GSF Generator-to-Load Distribution Factor

GSR Gas Supply Realignment

GSR costs Gas Supply Realignment Costs

GT&C General terms and conditions

GTI Gas Technology Institute

GW Gigawatt

Gwh Gigawatt-Hour

Back to Top


HCA Host Control Area

HEP Habitat Evaluation Procedure

HHI Hirschman Herfindahl Index

HQI Habitat Quality Index

hp Horsepower

HVAR Highly Valued Aquatic Resource

Back to Top


IBC International Boundary Commission

IBES Institutional Brokers' Estimate System

ICAP Installed Capacity

ICT Independent Coordinator of Transmission

IDC Interchange Distribution Calculator

IEEE Institute of Electrical and Electronics Engineers, Inc.

IER Incremental Energy Rate

IFIM Instream Flow Incremental Methodology

IGIC Interim gas inventory charge

IGSC Interim gas supply charge

IGT Institute of Gas Technology

IHR Incremental Heat Rate

IJC International Joint Commission

ILP Integrated Licensing Process

IOS Interconnected Operations Services

IOU Investor Owned Utility

IP Implementation plan

IPAA Independent Petroleum Association of America

IPPs Independent Power Producers

INGAA Interstate Natural Gas Association of America

IROL Interconnection Reliability Operating Limit

IRP Integrated Resource Planning

IRR Internal Rate of Return

IRS Internal Revenue Service

ISO Independent System Operator

ISO-NE ISO New England, Inc.

ISP Incentive Sales Program

ISS Interruptible Sales Service

IT Interruptible Transportation

ITC Investment Tax Credit

ITS Interruptible transportation service

Back to Top


J.A.S. Joint Association Survey

Back to Top


KN Kansas-Nebraska

kV Kilovolt

KVA Kilovolt-Ampere

kvar Kilovar

Kw Kilowatt

KWH Kilowatt-Hour

Back to Top


LBO Leveraged Buyout

LDC Local Distribution Company

LIBOR The London Interbank Offered Rate of Interest

LIFO Last-in, First Out

LIHEAP Low-Income Home Energy Assistance Program

LNG Liquified Natural Gas

LODF Line Outage Distribution Factor

LOLE Loss of Load Expectation

LPG Liquified Petroleum Gas

LPN Lender Participation Notes

LSE Load Serving Entity

LSF Load Shift Factor

lsfo Low-sulfur fuel oil

Back to Top


MAAC Mid-Atlantic Area Council

MAIN Mid-America Interconnected Network

MAOP Maximum allowable operating pressure

MAPP Mid-Continent Area Power Pool

MBR Market-based Rates

Mcf One Thousand Cubic Feet

MDD Maximum Daily Delivery Obligations

MDDQ Maximum Daily Delivery Quantity

MDQ Maximum Daily Quantities

MER Maximum Efficient Rate

MFV Modified Fixed-Variable Rate

MISO Midwest Independent Transmission System Operator, Inc.

MLP Maximum lawful price

MLRA Major Land Resource Areas

MM Used to denote million in gas usage

MMBtu 1 million British Thermal Unit

MMC Market Monitoring Center

MMcf 1 million cubic feet of gas

MMS Mineral Management Service

MODFLOW model of groundwater flow

MOU Memorandum of Understanding

MP Milepost

MRO Midwest Reliability Organization

msl Mean sea level

MSW Municipal Solid Waste

Muni Municipality

MVA Megavolt-Amperes

MW Megawatts

Back to Top


NAAQS National Ambient Air Quality Standards

NAESB North American Energy Standards Board (formerly GISB)

NAFTA North American Free Trade Agreement

NARUC National Association of Regulatory Utility Commissioners

NASDAQS National Ass'n of Securities Dealers Automated Quotation Sys.

NASUCA National Association of Utility Consumer Advocates

NATC Non-Recallable Available Transfer Capability

NBS National Bureau of Standards

NCD Non-coincidental Demand

NCSL National Conference of State Legislatures

NEA of 1978 The National Energy Act of 1978

NEB National Energy Board

NEPA National Environmental Policy Act

NEPOOL New England Power Pool

NERC North American Electric Reliability Corporation

NGA Natural Gas Act

NGAA Natural Gasoline Association of America

NGL Natural Gas Liquids

NGPA Natural Gas Policy Act of 1978

NGPSA Natural Gas Pipeline Safety Act of 1968

NGSA Natural Gas Supply Association

NHPA National Historic Preservation Act

NITC Normal Incremental Transfer Capability

NMFS National Marine Fisheries Service

NOAA National Oceanic and Atmospheric Administration

NOI Notice of Intent or Notice of Inquiry or Notice of Investigation

NOPR Notice of Proposed Rulemaking

NPCC Northeast Power Coordinating Council

NPS National Park Service

NPV Net Present Value

NRC Nuclear Regulatory Commission

NRCS National Resource Conservation Service

NREPA National Resource and Environmental Protection Act

NRHP National Register of Historic Places

NRI National Rivers Inventory

NSA Noise sensitive area

NUG Non-Utility Generator

NWI National Wetland Inventory

NYSDEC New York State Department of Environmental Conservation

NYISO New York Independent System Operator, Inc.

Back to Top


O&M Operation and Maintenance Expenses

OASIS Open Access Same Time Information Systems

OATT Open Access Transmission Tariff

OC Optical Certificate

OCS Outer Continental Shelf

OCSLA Outer Continental Shelf Lands Act

OFO Operational Flow Order

O&M Operation and maintenance

OMP Operation and Maintenance Plan

Ontario IESO Ontario Independent Electricity System Operator

OPEC Organization of Petroleum Exporting Countries

OSHA U.S. Department of Labor Occupational Safety and Health Administration

OTAG Ozone Transport Assessment Group

OTDF Outage Transfer Distribution Factor

Back to Top


PA Planning Authority

PA Programmatic Agreement

PBR Performance-Based Regulation

PCB Polychlorinated biphenyls

PD Preliminary Determination

PGA Purchased Gas Adjustment

PHA Production Handling Agreement

PHFFU Plant held for future use

PIDX Petroleum Industry Data Exchange

PIFUA Powerplant and Industrial Fuel Use Act of 1978

PJM PJM Interconnection, LLC

Plan FERC's Upland Erosion Control, Revegetation, and Maintenance Plan (when used in gas certificate proceedings)

PM Particulate matter

PMA Power Marketing Administration or Fed. Power Marketing Agency

PM&E Protection, mitigation and enhancement

POD Point of Delivery

POR Point of Receipt

PPA Power Purchase Agreement

ppm Parts per million

Procedures FERC's Wetland & Waterbody Construction Mitigation Procedures (when used in gas certificate proceedings)

PSC Public Service Commission

PSD Prevention of Significant Deterioration

psig Pounds per square inch

PTDF Power Transfer Distribution Factor

PTP Point to Point Transmission Service

PUC Public Utility Commission

PUD Public Utility District

PUHCA Public Utility Holding Company Act

PURPA Public Utility Regulatory Policies Act

PX Power Exchange

Back to Top


QF Qualifying Facility

QFs Qualifying Facilities

QUAD A quadrillion Btus

Back to Top


R/P Reserves-to-Production

RAB Regional Advisory Body

RAS Remedial Action Scheme

RATC Recallable Available Transmission Capability

RC Reliability Coordinator

RCRA Resource Conservation and Recovery Act

RCIS Reliability Coordinator Information System

RFA Regulatory Flexibility Act

RFC ReliabilityFirst Corporation

RFI Request for Interchange

RM Rulemaking

RMR Reliability Must Run

ROA Return of Assets

ROE Return of Equity

ROFR Right of First Refusal

ROI Return on Investment

ROW Right-of-Way

RPM Reliability Pricing Model

RRO Regional Reliability Organization

RSE Revenue Stream Estimate

RTG Regional Transmission Group

RTO Regional Transmission Organization

RTP Real-time Pricing

RTU Remote Terminal Unit

RUS Rural Utilities Service

Back to Top


SCADA Supervisory Control and Data Acquisition

Scf Standard Cubic Foot of Natural Gas

SCO Stranded Cost Obligation

SEC Securities and Exchange Commission

SERC SERC Reliability Corporation

Secretary generally refers to Secretary of the Commission

SFEIS Supplemental Final Environmental Impact Statement

SFV Straight Fixed-Variable

SGR State game refuge

SHPO State Historic Preservation Office

SIC Standard Industrial Classification

SMPs Special Marketing Programs

SNG Synthetic Natural Gas or Substitute Natural Gas

SOL System Operating Limit

SPCC Spill Prevention, Containment and Countermeasure Plan

SPP Small Power Producer

SPP Southwest Power Pool, Inc.

SPS Special Protection System

SVC Static VAR Compensator

SYD Sum of Years' Digits

Back to Top


TBS Town border station

TC Total Cost

Tcf Trillion cubic feet

TCR Transition Cost Recovery (Mechanism)

TDU Transmission Dependent Utility

TEFRA Tax Equity and Fiscal Responsibility Act of 1985

TLR Procedures Transmission Line Loading Relief Procedures

TOP Transmission Operator

TOU Time-of-Use

Transco Transmission Company

TRM Transmission Reliability Margin

TTC Total Transfer Capability

TVA Tennessee Valley Authority

Back to Top


UFLS Under Frequency Load Shedding

U.S.C. United States Code

USDA U.S. Department of Agriculture

USGS U.S. Geological Survey

UVLS Under Voltage Load Shedding

Back to Top


v. Versus

v Volt

VA Volt-Ampere

VAR Volt-Ampere-Reactive Unit

Back to Top


WACOG weighted average cost of gas

WECC Western Electricity Coordinating Council

WIRAB Western Interconnection Regional Advisory Body

WMA Wildlife management area

WPA Waterfowl production area

WPI Wholesale Price Index

WQC Water Quality Certificate

WSCC Western Systems Coordinating Council

WSPP Western Systems Power Pool

WTP Willingness to Pay

WY Water Year

Back to Top

This page was last updated on July 15, 2020