# Welding.

- **operation:** document
- **citation:** 49 CFR 178.352-4
- **title:** Welding.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** Not available
- **effective on:** 2003-10-01
- **summary:** Welding must be of material having a melting point in excess of 800 °C (1475 °F) (except that for packages constructed prior to March 31, 1975, this temperature may be 540 °C (1000 °F)), with a joint efficiency of at least 0.85. This requirement applies to welding used in adding spacer rods to compl
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-178-352-4.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-178-352-4
- **source url:** https://www.govinfo.gov/app/details/CFR-2003-title49-vol2/CFR-2003-title49-vol2-sec178-352-4
**body:**

Welding must be of material having a melting point in excess of 800 °C (1475 °F) (except that for packages constructed prior to March 31, 1975, this temperature may be 540 °C (1000 °F)), with a joint efficiency of at least 0.85. This requirement applies to welding used in adding spacer rods to comply with § 178.352-3(c)(1).

[Amdt. 178-35, 39 FR 45246, Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990, as amended at 63 FR 37462, July 10, 1998]
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- **body characters:** 469