Lufthansa Cargo — Hazardous Materials Safety Interpretation

Page 1of Transportation U.S. Department 1200 New Jersey Avenue, SE Washington, D.C. 20590 Pipeline and Hazardous Administration Materials Safety JAN O 5 2015 Mr. Hilmar Leng Lufthansa Cargo The Americas 3400 Peachtree Road, Ste. 1225 Atlanta, GA 30326 Ref. No. 14-0174 Dear Mr. Hilmar Leng: This is a response to your September 17, 2014 letter requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) with regard to quantity limitations for Division 2.2 non-flammable compressed gas transported by passenger aircraft. Specifically, you are requesting clarification on which quantity limitation is applicable under § 175.75(c) for Division 2.2 non-flammable compressed gas when there are subsidiary risks involved. The net weight quantity limitation of 75 kg for Division 2.2 non-flammable compressed gas specified in § 175.75 (c) is applicable regardless of the subsidiary hazards. The subsidiary hazard does not need to be considered, provided the material is otherwise authorized for carriage by passenger aircraft. I hope this information is helpful. If you have any more questions, please do not hesitate to contact this office again. Sincerely, Dirk Der F Acting Chief, Standards Development Standards and Rulemaking Division#

Page 2Kesko 175.75 Kirket Quanti 14-0174 The Americas Lufthansa Cargo Ihre Zeichen 3400 Peachtree Rd Ste. 1225, Atlanta GA 30326 USA Your Reference Unsere Zeichen/Datum Our Reference/Date Telefon/Telefax Telephone/Telefax United States Department of Transportation PHMSA Office of Hazardous Materials 17. Sept, 2014 Tel: + 1 (404) 814-5158 Standards Attn: PHH-10 cc: Email: hilmar.leng@dih.de East Building 1200 New Jersey Avenue, SE Washington, D.C. 20590-0001 USA Re: Request for clarification sent via e-mail Dear Sir/Madam, Lufthansa Cargo is requesting clarification about the quantity limitation on board an aircraft according to 49 CFR § 175.75 - ICAO U.S. Variation 13. The regulations state that if hazardous material is loaded in an inaccessible manner on board a. passenger aircraft, the limits per inaccessible compartment/hold of hazardous material is limited to 25 Kg and in addition 75 Kg of non-flammable gas class 2.2. The clarification we need is the 75 Kg restriction for non-flammable gas when there is also a etc. For these cases, does the 75 Kg rule still apply or are we now obliged to adhere to the 25 sub-risk involved e.g. some Aerosols UN1950 2.2 (8), UN 1072 Oxygen compressed 2.2 (5.1) Kg rule? Registereintragung/Registration: Amisgericht Darmstadt HR B 83326 Sitz der Geseiischaft/Corporate Headquerters: Lufthansa Cargo AG. Langer Korweg 34i, 65451 Kelsterbach Varstand Franutive Bosrd: Carsten Scoh: /Vorsitzender/Chairman), Dr. Roland Busch, Dr. Andreas Otto, Kail-Heinz Köpile Vorsitzender des Aufsichtsrats/Chairman of the Supervisory Board: Stefan Lauer Attention: This message contains confidential information intended only for the person(s) named above. If you have received ihis message in error, please notify us immediately and delete this message and any aftachment from your computer.#

Page 3Thank you for your assistance. With kindest regards, Lufthansa Cargo AG Hilmar Leng Dangerous Goods Manager, the Americas Sitz der Gesellschaft/Corporate Headquarters: Lufthansa Cargo AG, Langer Komweg 34i. 65451 Keisterbach Vorsitzender des Aufsichtsrats/Chairman of the Supervisory Board: Stefan Lauer Registereintragung/Registration: Amtsgericht Darmstadt HR B 83326 Vorstand/Executive Board: Cerster: Spohr (Vorsitzender/Chairman). Dr. Roland Busch. Di. Andreas Otto, Kari-ieinz Köefle message in error, piease netity us immediately and delete this message and any attachment from your computer Altention: This message contains confidential information intended only for the person(s) named above. If you have received this#