# Tennessee Regulatory Authority — Pipeline Safety Interpretation

- **operation:** document
- **citation:** PI-96-020
- **title:** Tennessee Regulatory Authority — Pipeline Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1996-09-16
- **effective on:** Not available
- **summary:** PI-96-020 response to Tennessee Regulatory Authority concerning 192.229.
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- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-96-020
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1996/PI96020.pdf
**body:**

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1
9-16-96
Mr. Glynn Blanton
Chief, Gas Safety Division
Tennessee Regulatory Authority
460 James Robertson Parkway
Nashville, TN 37243-0505
Dear Mr. Blanton:
Thank you for your letter of August 20, 1996, regarding the welding regulation in
§192.229(c)(1). You asked if this regulation prevents welders who qualify under the ASME
Boiler and Pressure Vessel Code from requalifying under that code.
Section 192.229(c)(1) provides that welders qualified under §192.227(a) may not weld pipe to be
operated at 20 percent or more of SMYS unless, within the preceding six calendar months, the
welder has had one weld tested and found acceptable under section 3 or 6 of API Standard 1104.
The purpose of this regulation is to maintain welder qualifications that were established as
required by §192.227(a) under either section 3 of API Standard 1104 or section IX of the ASME
Boiler and Pressure Vessel Code. Section 192.229(c)(1) does not preclude welders from
requalifying under section IX of the ASME Boiler and Pressure Vessel Code instead of
maintaining their qualifications by having a weld tested under section 3 or 6 of API Standard
1104.
I hope you find this information helpful. Please let me know if you have any further questions.
Sincerely,
Richard D. Huriaux, P.E.
Director for Technology and Regulations
Office of Pipeline Safety
LMFurrow:jmd:64046:9-16-96
cc: DPS-1,2,10,20,Regions
StateMailing, TSI

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