Van Hool NV — Hazardous Materials Safety Interpretation

Page 1U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration 1200 New Jersey Ave., SE Washington, DC 20590 DEC 2% -. -m Mr. Chris Vleugels Technical Department Commercial Vehicles Van Hool NV Bernard Van Hoolstrat 58 B-2 500 Lier Koningshooikt Belgium Ref. No.: 08-0151 Dear Mr. Vleugels: This is in response to your May 5,2008 letter requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 17 1 - 180) requirements applicable to portable tanks. Your scenario involves the transport of Methyl bromide, UN 1062 (Division 2.3), in a UN portable tank. Specifically, you ask if Special Provision B14, which is specified in column 7 of the entry for methyl bromide, applies to the UN portable tank. The answer is no. As noted in your letter, § 172.102(~)(3) specifies that, except as otherwise provided in the HMR, the "B" code provisions do not apply to UN portable tanks or IBCs. The packaging requirements for UN portable tanks transporting methyl bromide are specified under Special Provision T50, which refers users to 5 173.313. Although Special Provision B 14, which establishes insulation requirements for bulk packagings used to transport certain hazardous materials, does not apply to a UN portable tank, we strongly recommend the use of an insulated portable tank for the transportation of materials such as methyl bromide that are poisonous by inhalation. I hope this information is helpful. If you have further questions, please do not hesitate to contact this office. Sincerely, Hattie L. Mitchell Chief, Regulatory Review and Reinvention Office of Hazardous Materials Standards#

Page 25 a j f e M a o 1 p e $172.102 s P 8 / y Por"+aMf 7cclh.k~ 0 -0154 P Bus and Trailer Manu acturers Department: SB IV Extension: +32.34.20.34.14 Contact: C h s VLEUGELS Our reference: RCICV - 08/08 1 Office of Hazardous Materials Standard Pipeline and Hazardous Materials Safety Administration Attn: PHH-10 U.S. Departement of Transportation East Building, 1200 New Jersey Avenue, SE. Washington, DC 20590-0001 USA Lier, May 5th, 2008 49 CFR 9172.120 Methyl bromide, UN T50 Portable tank, Special provision B14 Dear Sirs, We, as a manufacturer of portable tanks have a question concerning the application of special provision B14 to an UN TSO-portable tank: - Transport of methyl bromide UN1062 (class 2.3) - Hazardous Materials Table of 5 172.10 1 Column 7: B 14 - $1 72.102(b)(3): " ... Unless otherwiseprovided in this subchapter these specialprovisions do not apply to UN, IM SpeciJication portable tanks or IBCs. " - 5 172.102(~)(3): "B14 Each bulkpackaging, except a tank car or a multi-unit-tank car tank, must be insulated . . . " Our question is now: does this special provision B14 have to be applied to UN T50 portable tanks for the transport of methyl bromide UN 1062? Awaiting your reply, we remain, with kind regards VAN HOOL N.V. /I Ing. R. AASSEN Technical Departement Technical Manager & Purchase Commercial Vehicles Commercial Vehicles chris,vleugels@vanhool.be Van Hool NV Bernard Van Hoolstraat 58 8-2500 Lier Koninashooikt - Belgium Tel. : +32-3-420 20 20 Fax -. : +32-3-482.30 68#