# Ms. Dorothea A. Welk — Hazardous Materials Safety Interpretation **Citation:** 06-0237 **Type / status:** guidance / guidance **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective:** Not stated **Published:** 2006-11-07 06-0237 concerning 171.12, 172.700. ## Document text <<>> J.S. Department f Transportation 400 Seventh Street, S.W. NOV 7 2006 Washington, D.C. 20590 Hazing us Materials Satery Administration Ms. Dorothea A. Welk 31600 - 126"* St., S.E., #99 Ref. No. 06-0237 Auburn, WA 98092 Dear Ms. Welk: This is in response to your July 17, 2006 letter regarding training certification requirements under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask whether an instructor or consultant must be "certified" under the HMR. Subpart H of Part 172 for review and approval of training programs or certificat on of The answer is no. There are no provisions or procedures under the training requirements in instructors. I hope this information is helpful. Sincerely, Chief, Standards Developmen Office of Hazardous Materials Standards 171.12a 060237 172.700 <<>> Foster July 17, 2006 §171.12a $172.700 2006 JUL 24 P 2 52 Training 06-0231 PHMSA Chief Council 400 Seventh Street SW Room 8417 Washington, DC 20590 Dear Chief Council, I am questioning the certification of Dangerous Goods instructors and consultants. I could not find anything in 49 CFR that dealt specifically with the qualifications of either of these positions. I was informed that if the instructor or consultant does not perform any Dangerous Goods Functions such as creating a carrier bill or a Dangerous Goods Shipper's declaration, etc. that there is no requirement that they become 49 CFR, IATA, etc. certified in order to teach a DG class or consult on DG questions. I would just like to confirm that this is correct. Thank you, Allarsehen Q. Will 31600 - 126" ST. S.E, #99 Dorothea A. Welk Phone: 253-833-4532 Auburn, WA 98092 ## Provenance - Official: Yes - Source: - Source ID: `phmsa` - SHA-256: `afd221adabf5c6dd143358657e42a549a5afced817f76c0fcecf345b9f243bd4` - Retrieved: 2026-08-20T00:59:31.977Z - Exported: 2026-08-24T05:10:34.553Z - Document slug: `phmsa-interpretation-06-0237` ### Source metadata ```json { "materialSubtype": "interpretation", "interpretationArea": "hazardous_materials", "representation": "full_text_from_official_pdf", "companies": [], "individuals": [ "Ms. Dorothea A. Welk" ], "refIds": [ "06-0237" ], "catalogDates": [ "2006-11-07" ], "catalogParts": [ 171, 172 ], "catalogRowCount": 2, "sourceRecordUrls": [ "https://www.phmsa.dot.gov/node/44246" ], "linkedAttachmentUrls": [], "unavailableResponseUrls": [], "duplicateRepresentationUrls": [], "citedSections": [ "171.12", "172.700", "171.12a" ], "catalogPageUrls": [ "https://www.phmsa.dot.gov/regulations/title49/section/17112", "https://www.phmsa.dot.gov/regulations/title49/section/172700" ], "pdfUrls": [ "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2006/060237.pdf" ], "representations": [ { "viewUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2006/060237.pdf", "detailUrl": null, "detailHtmlPath": null, "pdfUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2006/060237.pdf", "pdfArtifactPath": "data/sources/phmsa-interpretations/06-0237-209114dff3.pdf", "pdfArtifactSha256": "bfaf790467f72097a4d1160b6143630c1ecc1b6f8801d6aa0bb4673e9953e871", "extractedTextPath": "data/sources/phmsa-interpretations/06-0237-209114dff3.v2.txt", "extractedTextSha256": "fd1ab4f45be7c375af0fa0d67ed4e9fd533333853098129b55d4cab5626122a2", "pageCount": 2, "extractionVersion": 2 } ], "caveat": "Interpretations apply regulations to the facts presented and do not create independently enforceable requirements.", "jurisdiction": "US" } ```