# Marking of Materials

**Citation:** 192.63  
**Type / status:** regulation / current  
**Agency:** Arkansas Public Service Commission  
**Effective:** Not stated  
**Published:** Not stated

§ 192.63 Marking of Materials (a) Except as provided in paragraph (d) and (e) of this section, each valve, fitting, length of pipe, and other component must be marked as prescribed in the specification or standard to which it was manufactured. (b) Surfaces of pipe and components that are subject to 

## Document text

§ 192.63 Marking of Materials (a) Except as provided in paragraph (d) and (e) of this section, each valve, fitting, length of pipe, and other component must be marked as prescribed in the specification or standard to which it was manufactured. (b) Surfaces of pipe and components that are subject to stress from internal pressure may not be field die stamped. (c) If any item is marked by die stamping, the die must have blunt or rounded edges that will minimize stress concentrations. (d) Paragraph (a) of this section does not apply to items manufactured before November 12, 1970, that meet all of the following: (1) The item is identifiable as to type, manufacturer, and model. (2) Specifications or standards giving pressure, temperature, and other appropriate criteria for the use of items are readily available. (e) All plastic pipe and components must also meet the following requirements: (1) All markings on plastic pipe prescribed in the listed specification and the requirements of paragraph(e)(2) of this section must be repeated at intervals not exceeding two feet. (2) Plastic pipe and components manufactured after December 31, 2019, must be marked in accordance with the listed specification. (3) All physical markings on plastic pipelines prescribed in the listed specification and paragraph(e)(2) of this section must be legible until the time of installation. (f) Operators shall reidentify pipe if specification markings are obliterated during the coating and/or wrapping process. This reidentification is not necessary if pipe is immediately installed in a system.

## Provenance

- Official: Yes
- Source: <https://codeofarrules.arkansas.gov/Rules/Rule?chapterID=40&levelType=part&partID=1394&subChapterID=392&titleID=23>
- Source ID: `ar-car-pipeline-safety`
- SHA-256: `6220839eaa96634de24cd1c3ccbdc43a23adcf73d06389abe5e204509550b012`
- Retrieved: 2026-08-12T08:10:37.612Z
- Exported: 2026-08-25T11:15:48.890Z
- Document slug: `ar-car-23-500-192-63`

### Source metadata

```json
{
  "jurisdiction": "US-AR",
  "subject": "intrastate-gas",
  "caveats": {
    "exactScope": "The searchable corpus contains every current numbered section, the code-wide definitions, and every operative appendix in official 23 CAR Part 500, plus direct pipeline rules 15 CAR sections 275-406 and 275-504. Reserved and removed provisions are inventory-only.",
    "excludedScope": "This is not all Arkansas pipeline law. Standalone statutes, dockets and orders, one-call law, utility rates and service, siting, environmental permits, highway crossings, local law, forms, and incorporated third-party standards are excluded. Other current AOGC gas and transportation rules are inventoried as adjacent production, conservation, storage, or fluid-transport material.",
    "applicabilityCaveat": "APSC administers certified intrastate gas safety downstream of producer custody transfer. AOGC section 275-406 separately reaches specified producer or producer-affiliated natural-gas systems. AOGC section 275-504 imposes state permitting and operational duties on specified hazardous-liquid pipelines, but PHMSA states that it directly inspects and enforces intrastate hazardous-liquid pipeline safety in Arkansas. Inclusion does not establish applicability to a particular facility.",
    "incorporationCaveat": "AOGC sections 275-406 and 275-504 use dynamic 'as amended' wording for federal Parts 190, 191, 192, 195, and 199. Part 500 is a state code that reproduces and modifies federal-derived gas provisions. References and relationship records do not substitute a retrieval-date federal text or decide the legal effect of incorporation.",
    "publicationCaveat": "The Code of Arkansas Rules identifies its online database as the official version, effective as a publication system January 1, 2025, updated weekly, and potentially behind recent agency rulemaking. The official Part 500 page reports Ark. R. 2026-6 effective January 8, 2026; its PDF is headed August 22, 2025 and Docket 25-025-R. Retrieval and site-update dates are publication observations, not inferred legal effective dates for every section.",
    "rights": "Official Arkansas and federal government artifacts are archived with attribution and SHA-256 provenance. Public access does not settle rights in seals, site presentation, forms, incorporated standards, or third-party material; downstream redistribution requires separate review."
  },
  "rightsReviewRequired": true,
  "references": [],
  "codePart": "23 CAR pt. 500",
  "partEffectiveOn": "2026-01-08",
  "partEffectiveDateNotImputedToIndividualProvision": true,
  "federalDerivedStateCode": true,
  "sourceCollection": "ar-car-23-part-500",
  "region": "AR"
}
```