Definitions

§ 192.3 Definitions As used in this part: Abandoned means permanently removed from service. Active Corrosion means continuing corrosion that, unless controlled, could result in a condition that is detrimental to public safety. Administrator means the Administrator of the Pipeline and Hazardous Materials Safety Administration or any person to whom authority in the matter concerned has been delegated by the U.S. Secretary of Transportation. Alarm means an audible or visible means of indicating to the controller that equipment or processes are outside operator-defined, safety-related parameters. Business District means a location where gas mains are utilized to serve customers that are predominately commercial in nature and where the street and/or sidewalk paving generally extends from the centerline of a thoroughfare to the established building line on either side. Change to a segment of pipeline means a physical change in the pipeline or significant changes in operating pressure. Commission means, unless the context otherwise requires, the Arkansas Public Service Commission or any person or entity to whom the Commission has delegated authority in the matter concerned. Close interval survey means a series of closely and properly spaced pipe-to-electrolyte potential measurements taken over the pipe to assess the adequacy of cathodic protection or to identify locations where a current may be leaving the pipeline that may cause corrosion and for the purpose of quantifying voltage#

(IR)drops other than those across the structure electrolyte boundary, such as when performed as a current interrupted, depolarized, or native survey. Composite Materials means materials used to make pipe or components manufactured with a combination of either steel or plastic, or both, and with a reinforcing material to maintain its circumferential or longitudinal strength. Control Room means an operations center staffed by personnel charged with the responsibility for remotely monitoring and controlling a pipeline facility. Controller means a qualified individual who remotely monitors and controls the safety-related operations of a pipeline facility via a SCADA system from a control room, and who has operational authority and accountability for the remote operational functions of the pipeline facility. Customer Meter means the meter that measures the transfer of gas from an operator to a consumer. Distribution center means the initial point where gas enters piping used primarily to deliver gas to customers who purchase it for consumption, as opposed to customers who purchase it for resale, for example:#

(1)At a metering location;#

(2)A pressure reduction location; or#

(3)Where there is a reduction in the volume of gas, such as a lateral off a transmission line. Distribution Line means a pipeline other than a gathering or transmission line. Dry gas or dry natural gas means gas above its dew point and without condensed liquids. Electrical Survey means a series of closely spaced pipe-to-soil readings over pipelines which are subsequently analyzed to identify locations where a corrosive current is leaving the pipeline. Engineering critical assessment#

(ECA)means a documented analytical procedure based on fracture mechanics principles, relevant material properties (mechanical and fracture resistance properties), operating history, operational environment, in-service degradation, possible failure mechanisms, initial and final defect sizes, and usage of future operating and maintenance procedures to determine the maximum tolerable sizes for imperfections based upon the pipeline segment maximum allowable operating pressure. Entirely replaced onshore transmission pipeline segments means, for the purposes of §§ 192.179 and 192.634, where 2 or more miles, in the aggregate, of onshore transmission pipeline have been replaced within any 5 contiguous miles of pipeline within an 24-month period. This definition does not apply to any gathering line. Gas means natural, manufactured, liquefied natural, flammable gas or gas which is toxic or corrosive. Gathering Line means a pipeline that transports gas from a current production facility to a transmission line or main. Hard spot means an area on steel pipe material with a minimum dimension greater than two inches (50.8 mm) in any direction and hardness greater than or equal to Rockwell 35 HRC (Brinell 327 HB or Vickers 345 HV10). High Pressure Distribution System means a distribution system in which the gas pressure in the main is higher than the pressure provided to the customer. Key Valves means shut off valves in a distribution system or transmission line which may be necessary to isolate segments of a system or line for emergency purposes. In-line inspection#

(ILI)means an inspection of a pipeline from the interior of the pipe using an inspection tool also called intelligent or smart pigging. This definition includes tethered and self- propelled inspection tools. In-line inspection tool or instrumented internal inspection device means an instrumented device or vehicle that uses a non-destructive testing technique to inspect the pipeline from the inside in order to identify and characterize flaws to analyze pipeline integrity; also known as an intelligent or smart pig. Line Section means a continuous run of transmission line between adjacent compressor stations, between a compressor station and storage facilities, between a compressor station and a block valve, or between adjacent block valves. Listed Specification means a specification listed in Section I of Appendix B to Part 192. Low-Pressure Distribution System means a distribution system in which the gas pressure in the main is substantially the same as the pressure provided to the customer. Main means a distribution line that serves as a common source of supply for more than one service line. Master Meter System means a pipeline system for distribution gas within, but not limited to, a definable area (such as a mobile home park, housing project, or apartment complex) where the operator purchases metered gas from an outside source for resale through a gas distribution pipeline system. The gas distribution pipeline system supplies the ultimate consumer who either purchases the gas directly through a meter or by other means, such as rents. Maximum Actual Operating Pressure means the maximum pressure that occurs during normal operations over a period of one year. Maximum Allowable Operating Pressure#

(MAOP)means the maximum pressure at which a pipeline or segment of a pipeline may be operated under this code. Mobile Home Park means two or more mobile homes located on a contiguous tract of land. Moderate consequence area means:#

(1)An onshore area that is within a potential impact circle, as defined in § 192.903, containing either:#

(i)Five or more buildings intended for human occupancy; or#

(ii)Any portion of the paved surface, including shoulders, of a designated interstate, other freeway, or expressway, as well as any other principal arterial roadway with 4 or more lanes, as defined in the Federal Highway Administration's Highway Functional Classification Concepts, Criteria and Procedures, Section 3.1 (see: https://www.fhwa.dot.gov/planning/processes/statewide/related/highway_functional _classifications/fcauab.pdf), and that does not meet the definition of high consequence area, as defined in § 192.903.#

(2)The length of the moderate consequence area extends axially along the length of the pipeline from the outermost edge of the first potential impact circle containing either 5 or more buildings intended for human occupancy; or any portion of the paved surface, including shoulders, of any designated interstate, freeway, or expressway, as well as any other principal arterial roadway with 4 or more lanes, to the outermost edge of the last contiguous potential impact circle that contains either 5 or more buildings intended for human occupancy, or any portion of the paved surface, including shoulders, of any designated interstate, freeway, or expressway, as well as any other principal arterial roadway with 4 or more lanes. Municipality means a city, county or any other political subdivision of the State of Arkansas. Notification of potential rupture means the notification to, or observation by, an operator of indicia identified in § 192.635 of a potential unintentional or uncontrolled release of a large volume of gas from a pipeline. This definition does not apply to any gathering line. Operator means a person who:#

(1)Engages in the transportation of gas; or#

(2)Operates a distribution system within a mobile home park, public housing authority, or multiple building complex if:#

(A)The system:#

(i)Is not owned, nor the responsibility of a public or municipal utility; and#

(ii)Is used to transport gas from a master meter or a public/municipal utility main to consumers who may or may not be metered; and#

(B)The gas distributed is not consumed solely by the owner/operator. Person means an individual, firm, joint venture, partnership, corporation, association, State, municipality, cooperative association, or joint stock association, and includes any trustee, receiver, assignee, or personal representative thereof. Petroleum Gas means propane, propylene, butane (normal butane or isobutanes), and butylene (including isomers), or mixtures composed predominantly of these gases, having a vapor pressure not exceeding 208 p.s.i.g. (1434 kPa) gage at 100°F (38°C). Petroleum Refinery means an industrial or manufacturing facility or plant primarily engaged in producing gasoline, kerosene, distillate fuel oils, residual fuel oils, lubricants or other products through the processing of petroleum crude oil that is subject to:#

(A)The federal Environmental Protection Agency Standards of Performance for New Stationary Sources set forth in Subpart GGG of 40 CFR part 60 or successor regulations;#

(B)The federal Environmental Protection Agency Chemical Accident Prevention Provisions set forth in Subparts, A, B, D, E, F, G, and H of 40 CFR Part 68 or successor regulations; and#

(C)The federal Occupational Safety and Health Administration Regulations governing process safety management of highly hazardous chemicals set forth in 29 CFR §1910.119 or successor regulations. Pipe means any pipe or tubing used in the transportation of gas, including pipe-type holders. Pipeline or Pipeline System means all parts of those physical facilities through which gas moves in transportation, including, but not limited to, pipe, valves and other appurtenances attached to pipe, compressor units, metering stations, regulator stations, delivery stations, holders, and fabricated assemblies. Pipeline Environment includes soil resistivity (high or low), soil moisture (wet or dry), soil contaminants that may promote corrosive activity, and other known conditions that could affect the probability of active corrosion. Pipeline Facilities includes without limitation, new and existing pipe, pipe rights-of-way, and any equipment, facility or building used in the transportation of gas or the treatment of gas during the course of transportation of gas. Private Line System means a natural gas pipeline or pipeline system that is not a master meter system; is not owned by, nor the responsibility of a public or municipal utility; is used to transport gas that is not consumed solely by the owner/operator from a public or municipal utility meter to consumers who may or may not be metered. Production Facilities includes without limitation, piping or equipment used in the production, extraction, recovery, lifting, stabilization, separation or treatment of natural gas or associated storage or measurement from the wellhead to a meter where the gas is transferred to a custodian other than the well operator for gathering or transport, commonly known as a "custodial transfer meter." Production Process means the extraction of gas from the geological source of supply to the surface of the earth, thence through the lines and equipment used to treat, compress and measure the gas between the wellhead and the meter where it is either sold or delivered to a custodian other than the well operator for gathering and transport to a place of sale, sometimes called "custodial transfer meter." Rupture-mitigation valve#

(RMV)means an automatic shut-off valve#

(ASV)or a remote-control valve#

(RCV)that a pipeline operator uses to minimize the volume of gas released from the pipeline and to mitigate the consequences of a rupture. This definition does not apply to any gathering line. Service Line means a distribution line that transports gas from a common source of supply to an individual customer, to two adjacent or adjoining residential or small commercial customers, or to multiple residential or small commercial customers served through a meter header or manifold. A service line ends at the outlet of the customer meter or at the connection to a piping, whichever is further downstream, or at the connection to customer piping if there is no meter. Service Regulator means the device on a service line that controls the pressure of gas delivered from a higher pressure to the pressure provided to the customer. A service regulator may serve one customer or multiple customers through a meter header or manifold. SMYS means specific minimum yield strength, and is:#

(1)For steel pipe manufactured in accordance with a listed specification, the yield strength specified as a minimum in that specification; or#

(2)For steel pipe manufactured in accordance with an unknown or unlisted specification, the yield strength determined in accordance with § 192.107(b). Supervisory Control and Data Acquisition#

(SCADA)System means a computer-based system or systems used by a controller in a control room that collects and displays information about a pipeline facility and may have the ability to send commands back to the pipeline facility. Test Failure means a break or rupture that occurs during strength proof testing of transmission or gathering lines that are of such magnitude as to require repair before continuation of the test. Transmission Line means a pipeline, other than a gathering line, that:#

(1)Transports gas from a gathering line or storage facility to a gas distribution center, storage facility or large volume customer that is not down-stream from a gas distribution center;#

(2)Operates at a hoop stress of 20 percent or more of SMYS;#

(3)Transports gas within a storage field; or#

(4)Is voluntarily designated by the operator as a transmission pipeline. NOTE: A large volume customer may receive similar volumes of gas as a distribution center, and includes factories, power plants, and institutional users of gas. Transportation of Gas means the gathering, transmission or distribution of gas by pipeline or the storage of gas in or affecting interstate, intrastate, or foreign commerce. Underground natural gas storage facility#

(UNGSF)means a gas pipeline facility that stores natural gas underground incidental to the transportation of natural gas, including:#

(1)#

(i)A depleted hydrocarbon reservoir;#

(ii)An aquifer reservoir; or#

(iii)A solution-mined salt cavern.#

(2)In addition to the reservoir or cavern, a UNGSF includes injection, withdrawal, monitoring, and observation wells; wellbores and downhole components; wellheads and associated wellhead piping; wing-valve assemblies that isolate the wellhead from connected piping beyond the wing-valve assemblies; and any other equipment, facility, right-of-way, or building used in the underground storage of natural gas. Welder means a person who performs manual or semi-automatic welding. Welding operator means a person who operates machine or automatic welding equipment. Weak link means a device or method used when pulling polyethylene pipe, typically through methods such as horizontal directional drilling, to ensure that damage will not occur to the pipeline by exceeding the maximum tensile stresses allowed. Wrinkle bend means a bend in the pipe that:#

(1)Was formed in the field during construction such that the inside radius of the bend has one or more ripples with:#

(i)An amplitude greater than or equal to 1.5 times the wall thickness of the pipe, measured from peak to valley of the ripple; or#

(ii)With ripples less than 1.5 times the wall thickness of the pipe and with a wrinkle length (peak to peak) to wrinkle height (peak to valley) ratio under 12.#

(2)#

(i)If the length of the wrinkle bend cannot be reliably determined, then wrinkle bend means a bend in the pipe where (h/D)*100 exceeds 2 when S is less than 37,000 psi (255 MPa), where (h/D)*100 exceeds (47000-S)/10,000 +1 for psi [(324-S)/69 +1 for MPa] when S is greater than 37,000 psi (255 MPa) but less than 47,000 psi (324 MPa), and where (h/D)*100 exceeds 1 when S is 47,000 psi (324 MPa) or more.#

(ii)Where:#

(A)D = Outside diameter of the pipe, in. (mm);#

(B)h = Crest-to-trough height of the ripple, in. (mm); and#

(C)S = Maximum operating hoop stress, psi (S/145, MPa).#