The tariff classification of gas storage cylinders from Spain

N363472August 14, 2026CLA-2-76:OT:RR:NC:N1:113
CATEGORY: Classification
TARIFF NO.: 7613.00.0000
Christophe MaggioliZentra USA CorpPO Box 140970Coral Gables, FL 33114RE: The tariff classification of gas storage cylinders from SpainDear Mr. Maggioli:In your letter dated
July 21, 2026
, you requested a tariff classification ruling. Technical information wassubmitted with your request.The products at issue are gas storage cylinders including product numbers: B50.WP200.00,B20.WP200.00.0000, B13.WP200.00.0000, B45.WP300.01.0000, B30.WP300.01.0000,B18.WP300.01.0000, and B12.WP300.01.0000. These cylinders are described as Type III compositeoverwrapped pressure vessels (COPV) designed to store high-pressure gases. Each cylinder consists of aninternal aluminum liner with an overwrap of composite carbon fiber and epoxy resin. Overall, these cylindershave an outer diameter of 265 millimeters (mm) with lengths that range from 515 mm to 1545 mm. Theoperational working pressure for B50.WP200.00, B20.WP200.00.0000 and B13.WP200.00.0000 is 200 bar,and the working pressure for B45.WP300.01.0000, B30.WP300.01.0000, B18.WP300.01.0000 andB12.WP300.01.0000 is 300 bar.In your request you suggest classification of the cylinders should be in heading 6815, Harmonized TariffSchedule of the United States (HTSUS), which provides for “Articles of stone or of other mineral substances(including carbon fibers, articles of carbon fibers and articles of peat), not elsewhere specified or included.”However, the cylinders are more specifically provided for elsewhere. Classification in 6815, HTSUS, istherefore precluded.Classification of merchandise under the HTSUS is in accordance with the General Rules of Interpretation(GRIs), taken in order. GRI 1 provides that classification shall be determined according to the terms of theheadings and any relative section or chapter notes. Accordingly, if merchandise is specifically provided for inthe terms of a heading, it is classifiable by operation of GRI 1.There are more specific headings that cover
“containers for compressed or liquefied gas.” Functionally, the aluminum liner provides the main shape andinternal structure of the cylinders containscompressed gases under high pressure. Accordingly, the gas and storage cylinders are classifiable in heading 7613, HTSUS.The applicable subheading for the gas storages cylinders will be 7613.00.0000, HTSUS, which provides for“Aluminum containers for compressed or liquefied gas.” The general rate of duty will be 5 percent advalorem.The duties cited above are current as of this ruling’s issuance. Duty rates are provided for your convenience and are subject to change. The text of the most recent HTSUS and the accompanying duty rates are providedat https://hts.usitc.gov/.This ruling does not address the applicability of any additional duties, taxes, fees, exactions and/or othercharges, which may apply to the goods discussed herein. This includes, but is not limited to, tariffs and otherduties as provided for in Subchapter III to Chapter 99, HTSUS.Thus, for example, in addition to the classification stated above, the merchandise covered by this ruling may also need to be reported with eitherthe Chapter 99 provision under which an additional tariff applies or one of the Chapter 99 provisionscovering exceptions to such tariffs.For further information to assist with the importation process, please refer to the frequently updated CargoSystems Messaging Service (CSMS) messages at https://www.cbp.gov/trade/automated/cargo-systems-messaging-service and the Trade Remedies page at https://www.cbp.gov/trade/programs-administration/trade-remedies.The holding set forth above applies only to the specific factual situation and merchandise description asidentified in the ruling request. This position is clearly set forth in Title 19, Code of Federal Regulations(CFR), Section 177.9(b)(1). This section states that a ruling letter is issued on the assumption that all of theinformation furnished in the ruling letter, whether directly, by reference, or by implication, is accurate andcomplete in every material respect. In the event that the facts are modified in any way, or if the goods do notconform to these facts at time of importation, you should bring this to the attention of U.S. Customs andBorder Protection (CBP) and submit a request for a new ruling in accordance with 19 CFR 177.2. Additionally, we note that the material facts described in the foregoing ruling may be subject to periodicverification by CBP.This ruling is being issued under the provisions of Part 177 of the Customs and Border ProtectionRegulations (19 C.F.R. 177).A copy of the ruling or the control number indicated above should be provided with the entry documentsfiled at the time this merchandise is imported. If you have any questions regarding the ruling, please contactNational Import Specialist Matthew Gay at [email protected].
Sincerely,
(for)James P. ForkanDirectorNational Commodity Specialist Division