# Supplemental Regulations

**Citation:** 16 TAC § 8.203  
**Type / status:** regulation / current  
**Agency:** Railroad Commission of Texas  
**Effective:** 2009-02-04  
**Published:** Not stated

The following provisions supplement the regulations appearing in 49 CFR Part 192, adopted under §8.1(b) of this chapter (relating to General Applicability and Standards). (1) Section 192.455(b) is supplemented by the following language after the first sentence: "Tests, investigation, or experience m

## Document text

The following provisions supplement the regulations
appearing in 49 CFR Part 192, adopted under §8.1(b) of this
chapter (relating to General Applicability and Standards).
(1) Section 192.455(b) is supplemented by the
following language after the first sentence: "Tests,
investigation, or experience must be backed by documented
proof to substantiate results and determinations."
(2) Section 192.457 is supplemented:
(A) by the following language in subsection
(b)(3): "(3) Bare or coated distribution lines. The operator
shall determine the areas of active corrosion by electrical
survey, or where electrical survey is impractical, by the study
of corrosion and leak history records, by leak detection

survey, or by other effective means, documented by data
substantiating results and determinations";
(B) by adding the following subsection: "(d)
When a condition of active external corrosion is found,
positive action must be taken to mitigate and control the
effects of the corrosion. Schedules must be established for
application of corrosion control. Monitoring effectiveness
must be adequate to mitigate and control the effects of the
corrosion prior to its becoming a public hazard or
endangering public safety."
(3) Section 192.465 is supplemented:
(A) by the following language after the first
sentence of subsection (a): "Test points (electrode locations)
used when taking pipe-to-soil readings for determining
cathodic protection shall be selected so as to give
representative pipe-to-soil readings. Test points (electrode
locations) over or near an anode or anodes shall not, by
themselves, be considered representative readings";
(B) by the following subsection: "(f) When leak
detection surveys are used to determine areas of active
corrosion or re-evaluate unprotected pipelines, the survey
frequency must be increased to monitor the corrosion rate
and control the condition. The detection equipment used
must have sensitivity adequate to detect gas concentration
below the lower explosive limit and be suitable for such
use."
(4) Section 192.475(a) is supplemented by the
following language at the end: "Corrosive gas" means a gas
which, by chemical reaction with the pipe to which it is
exposed, usually metal, produces a deterioration of the
material."
(5) Section 192.479 is supplemented by the
following subsection: "(d) 'atmospheric corrosion' means
aboveground corrosion caused by chemical or
electrochemical reaction between a pipe material, usually a
metal, and its environment, that produces a deterioration of
the material."

## Provenance

- Official: Yes
- Source: <https://texas-sos.appianportalsgov.com/rules-and-meetings?chapter=8&interface=VIEW_TAC&part=1&title=16>
- Source ID: `tx-rrc-tac`
- SHA-256: `4da294be8f42716f3903890fcbaee6b2a435dc089a69111cb7f85e2a775784a6`
- Retrieved: 2026-08-12T04:11:18.106Z
- Exported: 2026-08-22T05:03:14.567Z
- Document slug: `tx-tac-16-8-203`

### Source metadata

```json
{
  "jurisdiction": "US-TX",
  "titleNumber": 16,
  "part": "1",
  "chapter": "8",
  "section": "8.203",
  "subchapter": "C",
  "subchapterTitle": "Requirements for Gas Pipelines Only",
  "pipelineScope": "texas-intrastate-pipeline-safety",
  "legalScope": "Current Railroad Commission of Texas pipeline-safety regulations in 16 TAC Chapter 8 for intrastate gas, hazardous-liquid, carbon-dioxide, specified production and gathering facilities, and Texas-water facilities, subject to the rule-specific scope and incorporated federal standards.",
  "applicabilityCaveat": "Chapter 8 does not apply uniformly to every pipeline or operator. Section 8.1 excludes facilities and transportation subject to federal jurisdiction, distinguishes gas, hazardous-liquid, carbon-dioxide, gathering, production, master-meter, distribution, and Texas-water facilities, and incorporates federal standards subject to Texas modifications. Determine Commission jurisdiction, commodity, facility class, location, exceptions, waivers, and the current incorporated federal edition before relying on a provision.",
  "sourceNote": "Source Note: The provisions of this §8.203 adopted to be effective November 24, 2004, 29 TexReg 10733; amended to be effective February 4, 2009, 34 TexReg 582",
  "history": [
    {
      "action": "adopted",
      "effectiveOn": "2004-11-24",
      "registerCitation": "29 TexReg 10733"
    },
    {
      "action": "amended",
      "effectiveOn": "2009-02-04",
      "registerCitation": "34 TexReg 582"
    }
  ],
  "references": [
    {
      "citation": "16 TAC § 8.1(b)",
      "referenceType": "texas-administrative-code-section",
      "url": "https://texas-sos.appianportalsgov.com/rules-and-meetings?chapter=8&interface=VIEW_TAC&part=1&title=16"
    },
    {
      "citation": "16 TAC § 8.203",
      "referenceType": "texas-administrative-code-section",
      "url": "https://texas-sos.appianportalsgov.com/rules-and-meetings?chapter=8&interface=VIEW_TAC&part=1&title=16"
    },
    {
      "citation": "49 CFR Part 192",
      "referenceType": "federal-regulation-part",
      "url": "https://www.ecfr.gov/current/title-49/part-192"
    },
    {
      "citation": "29 TexReg 10733",
      "referenceType": "texas-register-citation",
      "url": null
    },
    {
      "citation": "34 TexReg 582",
      "referenceType": "texas-register-citation",
      "url": null
    }
  ],
  "figureCount": 0,
  "tacPublicationUrl": "https://texas-sos.appianportalsgov.com/rules-and-meetings?chapter=8&interface=VIEW_TAC&part=1&title=16",
  "rrcRulesPageUrl": "https://www.rrc.texas.gov/pipeline-safety/rules/",
  "rrcConsolidatedPdfUrl": "https://www.rrc.texas.gov/media/farb0a34/chapter-8-all-rule-text-and-figures-effective-feb25-2026.pdf",
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  "sourceLastModified": "Tue, 02 Jun 2026 17:36:15 GMT",
  "editionEffectiveOn": "2026-02-25",
  "publicationStatus": "The Texas Secretary of State provides the current legal TAC compilation. The Railroad Commission consolidated PDF is an official agency convenience copy and states its as-of date; verify current text and applicability against the Secretary of State compilation.",
  "rights": "Texas state website policy allows copying under conditions that include accurate, non-misleading presentation, source agency identification, source URL, retrieval date, a no-endorsement statement, and preservation of protected intellectual-property notices. Agency seals, marks, and branding require separate care. This connector grants no license or warranty.",
  "region": "TX"
}
```