# Regulus search export

- Query: `63 FR 5464`
- Source type: All
- Part: All
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- Sort: relevance
- Date from: Any
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- As of: Current corpus
- Results: 3
- Exported: 2026-08-23T14:51:27.263Z

## 1. Excess Flow ValveCustomer Notification

**Citation:** 63 FR 5464  
**Type / status:** rulemaking / historical  
**Agency:** Research and Special Programs Administration  
**Effective / published:** 1998-02-03 / 1998-02-03

This final rule requires operators of natural gas distribution systems to provide certain customers with information about excess flow valves (EFV's). Specifically, customers of new and replaced single residence service lines must be provided written notification about the availability of these valves meeting DOT-prescribed performance standards, and related safety benefits and costs. If a customer requests installation, the rule requires an operator to install the EFV if the customer pays all costs associated with installation. EFVs restrict the flow of gas by closing automatically if a service line breaks, thus, mitigating the consequences of service line failures. This regulation would enhance public awareness of the potential safety benefits from installing an EFV.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/1998/02/03/98-2496/excess-flow-valvecustomer-notification>
- Source ID: `federal-register`
- SHA-256: `b6a4f8bfe56e9069a89e63cb960140035d53ef3224633c9ddd219ed0849e0ee1`
- Retrieved: 2026-08-20T06:04:51.294Z
- Document slug: `federal-register-98-2496`
- Related records: 5

## 2. Excess Flow ValveCustomer Notification

**Citation:** 63 FR 20134  
**Type / status:** rulemaking / historical  
**Agency:** Research and Special Programs Administration  
**Effective / published:** 1998-04-23 / 1998-04-23

Also in the same final rule \[63 FR 5464: 2/3/98\] this document corrects metric units for pressure from \`\`m'' to \`\`kPa''.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/1998/04/23/98-10797/excess-flow-valvecustomer-notification>
- Source ID: `federal-register`
- SHA-256: `171a4b9d7b17557bd2a0df65a751e6fa63297f5d66386667856fad6dfe48d033`
- Retrieved: 2026-08-20T06:04:51.294Z
- Document slug: `federal-register-98-10797`
- Related records: 1

## 3. NTSB Safety Recommendation P-96-002

**Citation:** P-96-002  
**Type / status:** guidance / guidance  
**Agency:** National Transportation Safety Board  
**Effective / published:** 1996-03-06 / 1996-03-06

THE NTSB RECOMMENDS THAT THE RSPA : REQUIRE GAS-DISTRIBUTION OPERATOR TO NOTIFY ALL CUSTOMERS OF THE AVAILABILITY OF EXCESS FLOW VALVES; ANY CUSTOMER TO BE SERVED BY A NEW OR RENEWED SERVICE LINE WITH OPERATING PARAMETERS THAT ARE COMPATIBLE WITH ANY COMMERCIALLY AVAILABLE EXCESS FLOW VALVE SHOULD BE NOTIFIED; AN OPERATOR SHOULD NOT REFUSE TO NOTIFY A CUSTOMER BECAUSE OF THE CUSTOMER'S CLASSIFICATION OR THE DIAMETER 

### Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/carol-main-public/sr-details/P-96-002>
- Source ID: `ntsb-pipeline`
- SHA-256: `4154f3e1e936737cc44e6e205529e9f272e4ae5d189385c24ffc41fe1559807f`
- Retrieved: 2026-08-20T04:57:24.741Z
- Document slug: `ntsb-recommendation-p-96-002`
- Related records: 3