# Pressure testing

**Citation:** RCSA § 16-280b-B20  
**Type / status:** regulation / current  
**Agency:** Connecticut Public Utilities Regulatory Authority  
**Effective:** 2025-06-11  
**Published:** 2025-06-11

(a) Any pressure test performed pursuant to 49 CFR 192, Subpart J, as amended from time to time, shall: (1) be conducted using a gauge such that the test pressure is in the middle third of the range of the gauge; (2) be conducted at a test pressure of at least 150 percent of the desired MAOP or 90 pounds per square inc

## Document text

(a) Any pressure test performed pursuant to 49 CFR 192, Subpart J, as amended from time to time, shall: (1) be conducted using a gauge such that the test pressure is in the middle third of the range of the gauge; (2) be conducted at a test pressure of at least 150 percent of the desired MAOP or 90 pounds per square inch gauge, whichever is greater; (3) not be conducted against any valve separating the section being pressure tested from a Pipeline containing Gas, unless approved by the Authority in writing; and (4) be of a minimum duration in accordance with 49 CFR 192, Subpart J, as amended from time to time, or Table B20-1, whichever is greater. Table B20-1 - Minimum Pressure Test Duration Nominal Pipe Diameter (Inches) 30 Pipeline Length (feet) 2 and less >2 to <8 8 and up < 200 15 min 30 min 1 hour 200 to <1,000 30 min 2 hours 4 hours 4 hours 6 hours 1,000 to <2,500 1 hour 2,500 to 5,000 2 hours 6 hours 12 hours * > 5,000 3 hours 8 hours * 24 hours * * A leakage survey shall be conducted between 3 and 14 calendar days after the Pipeline is pressurized with Gas. (b) Prior to applying any pressure test medium, the Pipeline being tested shall be opened to atmosphere to verify that no positive Gas pressure exists in the section to be tested. (c) The pressure test medium shall not be Gas when pressure testing a section of existing Low Pressure Main to allow for operation at High Pressure.

## Provenance

- Official: Yes
- Source: <https://eregulations.ct.gov/eRegsPortal/Search/getDocument?guid=%7BE04F6097-0000-CC1C-9D68-25A0BA411C82%7D>
- Source ID: `ct-sots-rcsa-16-280b`
- SHA-256: `ebad91b935e1da478da9f5353032cd8a5d3d5e08343ad210846220be3667b094`
- Retrieved: 2026-08-12T07:07:58.041Z
- Exported: 2026-08-24T16:19:58.059Z
- Document slug: `ct-rcsa-16-280b-b20`

### Source metadata

```json
{
  "jurisdiction": "US-CT",
  "subtitle": "16-280b",
  "series": "B",
  "sectionNumber": 20,
  "secretaryFileNumber": 6446,
  "trackingNumber": "PR2023-019",
  "effectiveDateEvidence": "Secretary of the State confirmation states that the regulation became effective June 11, 2025.",
  "scopeCaveat": "This corpus contains all 117 dedicated pipeline-safety sections newly codified as RCSA 16-280b-A1 through A75, B1 through B32, and C1 through C10 by Connecticut Secretary of the State File Number 6446. The filing also amends four adjacent legacy utility provisions and repeals eleven obsolete 16-11 provisions; those actions are retained as provenance and inventory rather than mixed into the dedicated searchable corpus.",
  "applicabilityCaveat": "Applicability varies by natural-gas or petroleum-gas operator, public-service-company status, pipeline facility, master-meter or petroleum-gas distribution system, activity, waiver, and federal jurisdiction. PURA states that Connecticut has no intrastate transmission or gathering lines and that hazardous-liquid pipelines remain under PHMSA jurisdiction.",
  "incorporationCaveat": "The rules supplement and repeatedly incorporate federal pipeline requirements, generally as amended from time to time, and rely on Connecticut statutes and external standards. References are recorded without reproducing incorporated material or deciding federal preemption or facility-specific legal effect.",
  "publicationCaveat": "The authenticated final filing was posted to the Connecticut eRegulations System and became effective June 11, 2025. It is used instead of the older browse pages, some of which still display pre-2025 text and stale update labels.",
  "rights": "Official Connecticut legal and agency materials are retained with attribution and cryptographic provenance. State marks, site presentation, forms, annotations, and incorporated federal or privately authored material require separate review.",
  "rightsReviewRequired": true,
  "region": "CT"
}
```