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Virginia Administrative Code
Title 20. Public Utilities And Telecommunications
Agency 5. State Corporation Commission
Chapter 425. Rules Governing Enhanced 911 (E-911) Service
11/23/2024

20VAC5-425-10. Definitions.

The words and terms in § 56-484.12 of the Code of Virginia shall have application to this chapter. In addition, the following words and terms when used in this chapter shall have the following meanings unless the context clearly indicates otherwise:

"Automatic location identification" or "ALI" means the feature by which the name, service address, and supplemental emergency service information associated with the calling party's telephone number are forwarded to the public safety answering point (PSAP) for automatic display on the PSAP terminal equipment.

"Automatic number identification" or "ANI" means a feature by which the telephone number associated with a network access line is initially generated and forwarded to a PSAP for display on a 911 terminal.

"Average busy hour" means the one-hour period during the week statistically shown over time to be the hour in which the most telephone calls are received.

"Commission" means the Virginia State Corporation Commission.

"Competitive local exchange carrier" or "CLEC" means an entity, other than a locality, authorized to provide local exchange telecommunications services in Virginia pursuant to § 56-265.4:4 of the Code of Virginia and 20VAC5-417.

"Competitive telephone company" or "CTC" means any ILEC or CLEC that has elected to be regulated as a competitive telephone company in accordance with Chapter 2.1 (§ 56-54.2 et seq.) of Title 56 of the Code of Virginia.

"Database error" means an error in ALI address information caused by a LEC that affects the ability of a PSAP to route emergency services correctly.

"E-911 ALI database" means the set of ALI records residing on a computer system that is used with ANI to associate a physical location with a telephone number, including information such as name, telephone number, address, nearest cross street, and special preexisting conditions.

"E-911 services" means the services purchased by a jurisdiction for the purpose of processing E-911 calls.

"Foreign central office service" means local exchange telecommunications service that is furnished from one central office to a location typically served by another central office.

"Foreign exchange service" means local exchange telecommunications service that is furnished from one exchange to a location typically served by another exchange.

"Incumbent local exchange carrier," "ILEC," or "incumbent" means a public service company providing local exchange telecommunications services in Virginia on December 31, 1995, pursuant to a certificate of public convenience and necessity, or the successors to any such company.

"Local exchange carrier" or "LEC" means a certificated provider of local exchange telecommunications services, encompassing ILECs, CLECs, and MLECs, including ILECs and CLECs regulated as CTCs.

"Local exchange telecommunications services" means local exchange telephone service as defined by § 56-1 of the Code of Virginia.

"Locality" means a city, town, or county that operates an electric distribution system in Virginia.

"Municipal local exchange carrier" or "MLEC" means a locality certificated to provide local exchange telecommunications services pursuant to § 56-265.4:4 of the Code of Virginia and 20VAC5-417.

"Network access line" or "NAL" means a wireline line, trunk, or equivalent.

"New entrant" means a CLEC or an MLEC.

"P.01 grade of service" means a standard of service quality reflecting the probability that no more than one call out of 100 during the average busy hour will be blocked.

"Public safety answering point" or "PSAP" means a facility equipped and staffed to receive and process 911 calls and route them to emergency services personnel.

"Staff" means the commission's Division of Public Utility Regulation and associated personnel.

Statutory Authority

§ 12.1-13 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 20, Issue 23, eff. July 1, 2004; amended, Virginia Register Volume 34, Issue 24, eff. August 1, 2018.

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