# Lufthansa - The Americas — Hazardous Materials Safety Interpretation **Citation:** 09-0272 **Type / status:** guidance / guidance **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective:** Not stated **Published:** 2010-02-04 09-0272 response to Lufthansa - The Americas concerning 175.75. ## Document text <<>> U.S. Department of Transportation 1200 New Jersey Ave. SE Pipeline and Hazardous Materials FEB 4 2010 Washington. D.C. 20590 Safety Administration Mr. Hilmar Leng DGR Incident Manager Lufthansa - The Americas 3400 Peachtree Road N.E., Suite 1225 Atlanta, GA 30326 Ref. No. 09-0272 Dear Mr. Leng: This responds to your November 2, 2009 letter requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) regarding quantity limitations and cargo location for carriage by aircraft under § 175.75. Specifically, you request clarification of the requirements for Cargo Aircraft Only (CAD) packages loaded in Federal Aviation Administration (FAA) certified Class C cargo compartments. Your questions are answered and paraphrased as follows: Q1. Is there a quantity limitation for CAD packages loaded in an FAA certified Class C compartment of a cargo only aircraft? AI. No. In accordance with § 175.75(d), each package displaying a "Cargo Aircraft Only" label must be loaded on cargo aircraft in a manner that a crew member or other authorized person can access, handle and when size and weight permit, separate such packages from other cargo during flight; in a cargo compartment certified by FAA as a Class C aircraft cargo compartment as defined in 14 CFR 25.857(c); or in an FAA-certified freight container that has an approved fire or smoke detection system and fire suppression system equivalent to that required by the certification requirements for a Class C aircraft cargo compartment. A Class C cargo compartment is considered to be "accessible" for purposes ofthe "Cargo Only Aircraft" table in § 175.75(f). Thus, there is no quantity limitation for CAD packages transported on a cargo only aircraft and stowed in a Class C cargo compartment. Q2. If there is no quantity limitation for CAD packages, is there a quantity limitation for packages authorized as cargo aboard passenger aircraft that are loaded in an FAA-certified Class C compartment of a cargo only aircraft? Q2. Yes. As specified in the "Packages Authorized for Transport Onboard a Passenger Aircraft" section ofthe "Cargo Only Aircraft" table in § 175.75(f), packages authorized for transportation as cargo on a passenger aircraft that are loaded in an inaccessible manner in a Class C cargo compartment on a cargo only aircraft are subject to quantity limitations 25 kg per compartment plus an additional 75 kg of Division 2.2 material quantity limitations apply. <<>> Page 1 of2 DerKinderen, Dirk (PHMSA) From: Betts, Charles (PHMSA) Sent: Tuesday, February 02,20104:01 PM To: Leary, Kevin (PHMSA); Eichenlaub, Kurt (PHMSA); DerKinderen, Dirk (PHMSA); Nickels, Matthew (PHMSA) Cc: Gorsky, Susan (PHMSA); Mitchell, Hattie (PHMSA) Subject: FW: Interpretation letters concurrence Importance: High Attachments: 09-0249.doc; 09-0299.doc; 09-0207.doc FYI LET'S FINALIZE THESE LETTERS FOR ISSUANCE! Thanks, Charles From: Ledina.Gianfrate@faa.gov [mailto:Ledina.Gianfrate@faa.gov] Sent: Tuesday, February 02, 2010 3:45 PM To: Betts, Charles (PHMSA) Subject: Re: Interpretation letters concurrence Hi Charles, Both Janet and I agree with the changes you guys made. Thanks! ledina Ledina Gianfrate International and Outreach Division Office of Hazardous Materials Federal Aviation Administration T -202.385.4921 Email- Ledina.Gianfrate@faa.gov 01/27/2010 01:27 PM To Janet McLaughlin/AWAlFAA@FAA cc Ledina Gianfrate/AWAlFAA@FAA, , , , Subject Interpretation leiters concurrence Good afternoon JaneVLedina, 2/3/2010 ## Provenance - Official: Yes - Source: - Source ID: `phmsa` - SHA-256: `f904c81706d03e448d8e0b3d8e0594089804bb0e1424318a54ffd66f005db127` - Retrieved: 2026-08-20T00:59:31.977Z - Exported: 2026-08-24T19:57:02.566Z - Document slug: `phmsa-interpretation-09-0272` ### Source metadata ```json { "materialSubtype": "interpretation", "interpretationArea": "hazardous_materials", "representation": "full_text_from_official_pdf", "companies": [ "Lufthansa - The Americas" ], "individuals": [ "Mr. Hilmar Leng" ], "refIds": [ "09-0272" ], "catalogDates": [ "2010-02-04" ], "catalogParts": [ 175 ], "catalogRowCount": 1, "sourceRecordUrls": [ "https://www.phmsa.dot.gov/node/58681" ], "linkedAttachmentUrls": [], "unavailableResponseUrls": [], "duplicateRepresentationUrls": [], "citedSections": [ "175.75" ], "catalogPageUrls": [ "https://www.phmsa.dot.gov/regulations/title49/section/17575" ], "pdfUrls": [ "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2009/090272.pdf" ], "representations": [ { "viewUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2009/090272.pdf", "detailUrl": null, "detailHtmlPath": null, "pdfUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2009/090272.pdf", "pdfArtifactPath": "data/sources/phmsa-interpretations/09-0272-5937b4fdea.pdf", "pdfArtifactSha256": "1e3a7a9e1bcb085063400f39a9c40700cce99826e5322af56f9eef31c6b81011", "extractedTextPath": "data/sources/phmsa-interpretations/09-0272-5937b4fdea.v2.txt", "extractedTextSha256": "dc2dbe0eae0e145f5b526229c8f07e520e78432f890e71d103c2f29170970c8f", "pageCount": 2, "extractionVersion": 2 } ], "caveat": "Interpretations apply regulations to the facts presented and do not create independently enforceable requirements.", "jurisdiction": "US" } ```