# Chassis and Subassemblies From Mexico, Thailand, and Vietnam; Scheduling of the Final Phase of Countervailing Duty and Antidumping Duty Investigations
**AGENCY:**
United States International Trade Commission.
**ACTION:**
Notice.
**SUMMARY:**
The Commission hereby gives notice of the scheduling of the final phase of antidumping and countervailing duty investigation Nos. 701-TA-755-756 and 731-TA-1734-1736 (Final) pursuant to the Tariff Act of 1930 to determine whether an industry in the United States is materially injured or threatened with material injury, or the establishment of an industry in the United States is materially retarded, by reason of imports of chassis and subassemblies from Mexico, Thailand, and Vietnam, provided for in subheadings 8716.39.00 and 8716.90.50 of the Harmonized Tariff Schedule of the United States, preliminarily determined by the Department of Commerce (“Commerce”) to be sold at less-than-fair-value and imports of such products from Mexico and Thailand preliminarily determined by Commerce to be subsidized. Due to the lapse in appropriations and ensuing cessation of Commission operations, the Commission has tolled all statutory and other investigative deadlines to account for the shutdown and resumption of activities.
**DATES:**
September 29, 2025.
**FOR FURTHER INFORMATION CONTACT:**
Stamen Borisson ((202) 205-3125), Office of Investigations, U.S. International Trade Commission, 500 E Street SW, Washington, DC 20436.
Hearing-impaired persons can obtain information on this matter by contacting the Commission's TDD terminal on 202-205-1810. Persons with mobility impairments who will need special assistance in gaining access to the Commission should contact the Office of the Secretary at 202-205-2000. General information concerning the Commission may also be obtained by accessing its internet server ( *https://www.usitc.gov* ). The public record for these investigations may be viewed on the Commission's electronic docket (EDIS) at *https://edis.usitc.gov.*
**SUPPLEMENTARY INFORMATION:**
*Scope.* —For purposes of these investigations, Commerce has defined the subject merchandise as “chassis and subassemblies thereof whether finished or unfinished, whether assembled or unassembled, whether coated or uncoated, regardless of the number of axles, for carriage of containers, or other payloads (including self-supporting payloads) for road, marine roll-on/roll-off (RORO) and/or rail transport. Chassis are typically, but are not limited to, rectangular framed trailers with a suspension and axle system, wheels and tires, brakes, a lighting and electrical system, a coupling for towing behind a truck tractor, and a locking system or systems to secure the shipping container or containers to the chassis using twistlocks, slide pins or similar attachment devices to engage the corner fittings on the container or other payload. Subject merchandise includes, but is not limited to, the following subassemblies:
• Chassis frames, or sections of chassis frames, including kingpin assemblies, bolsters consisting of transverse beams with locking or support mechanisms, goosenecks, drop assemblies, extension mechanisms and/or rear impact guards;
• Running gear assemblies or axle assemblies for connection to the chassis frame, whether fixed in nature or capable of sliding fore and aft or lifting up and lowering down, which may or may not include suspension(s) (mechanical or pneumatic), wheel end components, slack adjusters, dressed axles, brake chambers, locking pins, and tires and wheels; and
• Assemblies that connect to the chassis frame or a section of the chassis frame, such as but not limited to, pintle hooks or B-trains (which include a fifth wheel), which are capable of connecting a chassis to a converter dolly or another chassis.
Importation of any of these subassemblies, whether assembled or unassembled, constitutes an unfinished chassis for purposes of these investigations. Subject merchandise also includes chassis, whether finished or unfinished, entered with components such as, but not limited to: hub and drum assemblies, brake assemblies (either drum or disc), bare axles, brake chambers, suspensions and suspension components, wheel end components, landing gear legs, spoke or disc wheels, tires, brake control systems, electrical harnesses and lighting systems.
Processing of finished and unfinished chassis and components such as trimming, cutting, grinding, notching, punching, drilling, painting, coating, staining, finishing, assembly, or any other processing either in the country of manufacture of the in-scope product or in a third country does not remove the product from the scope. Inclusion of other components not identified as comprising the finished or unfinished chassis does not remove the product from the scope.
Individual components entered and sold by themselves are not subject to the investigations, but components entered with a finished or unfinished chassis are subject merchandise. A finished chassis is ultimately comprised of several different types of subassemblies. Within each subassembly there are numerous components that comprise a given subassembly.
The scope excludes dry van trailers, refrigerated van trailers and flatbed trailers. Dry van trailers are trailers with a wholly enclosed cargo space comprised of fixed sides, nose, floor and roof, with articulated panels (doors) across the rear and occasionally at selected places on the sides, with the cargo space being permanently incorporated in the trailer itself. Refrigerated van trailers are trailers with a wholly enclosed cargo space comprised of fixed sides, nose, floor and roof, with articulated panels (doors) across the rear and occasionally at selected places on the sides, with the cargo space being permanently incorporated in the trailer and being insulated, possessing specific thermal properties intended for use with self-contained refrigeration systems. Flatbed (or platform) trailers consist of load carrying main frames and a solid, flat or stepped loading deck or floor permanently incorporated with and supported by frame rails and cross members.”
*Background.* —The final phase of these investigations is being scheduled pursuant to sections 705(b) and 731(b) of the Tariff Act of 1930 (19 U.S.C. 1671d(b) and 1673d(b)), as a result of affirmative preliminary determinations by Commerce that certain benefits which constitute subsidies within the meaning of § 703 of the Act (19 U.S.C. 1671b) are being provided to manufacturers, producers, or exporters in Mexico and Thailand of chassis and subassemblies, and that such products from Mexico, Thailand, and Vietnam are being sold in the United States at less than fair value within the meaning of § 733 of the Act (19 U.S.C. 1673b). The investigations were requested in petitions filed on February 26, 2025, by the U.S. Chassis Manufacturers Coalition, whose members are Cheetah Chassis Corporation, Berwick, Pennsylvania and Stoughton Trailers, LLC, Stoughton, Wisconsin.
For further information concerning the conduct of this phase of the investigations, hearing procedures, and rules of general application, consult the Commission's Rules of Practice and Procedure, part 201, subparts A and B (19 CFR part 201), and part 207, subparts A and C (19 CFR part 207).
*Participation in the investigations and public service list.* —Persons, including industrial users of the subject merchandise and, if the merchandise is sold at the retail level, representative consumer organizations, wishing to participate in the final phase of these investigations as parties must file an entry of appearance with the Secretary to the Commission, as provided in § 201.11 of the Commission's rules, no later than 21 days prior to the hearing date specified in this notice. A party that filed a notice of appearance during the preliminary phase of the investigations need not file an additional notice of appearance during this final phase. The Secretary will maintain a public service list containing the names and addresses of all persons, or their representatives, who are parties to the investigations.
Please note the Secretary's Office will accept only electronic filings during this time. Filings must be made through the Commission's Electronic Document Information System (EDIS, *https://edis.usitc.gov* ). No in-person paper-based filings or paper copies of any electronic filings will be accepted until further notice.
*Limited disclosure of business proprietary information (BPI) under an administrative protective order (APO) and BPI service list.* —Pursuant to § 207.7(a) of the Commission's rules, the Secretary will make BPI gathered in the final phase of these investigations available to authorized applicants under the APO issued in the investigations, provided that the application is made no later than 21 days prior to the hearing date specified in this notice. Authorized applicants must represent interested parties, as defined by 19 U.S.C. 1677(9), who are parties to the investigations. A party granted access to BPI in the preliminary phase of the investigations need not reapply for such access. A separate service list will be maintained by the Secretary for those parties authorized to receive BPI under the APO.
*Staff report.* —The prehearing staff report in the final phase of these investigations will be placed in the nonpublic record on April 7, 2026, and a public version will be issued thereafter, pursuant to § 207.22 of the Commission's rules.
*Hearing.* —The Commission will hold a hearing in connection with the final phase of these investigations beginning at 9:30 a.m. on April 21, 2026. Requests to appear at the hearing should be filed in writing with the Secretary to the Commission on or before April 15, 2026. Any requests to appear as a witness via videoconference must be included with your request to appear. Requests to appear via videoconference must include a statement explaining why the witness cannot appear in person; the Chairman, or other person designated to conduct the investigation, may in their discretion for good cause shown, grant such a request. Requests to appear as remote witness due to illness or a positive COVID-19 test result may be submitted by 3:00 p.m. the business day prior to the hearing. Further information about participation in the hearing will be posted on the Commission's website at *https://www.usitc.gov/calendarpad/calendar.html.*
A nonparty who has testimony that may aid the Commission's deliberations may request permission to present a short statement at the hearing. All parties and nonparties desiring to appear at the hearing and make oral presentations should attend a prehearing conference, if deemed necessary, to be held at 9:30 a.m. on April 20, 2026. Parties shall file and serve written testimony and presentation slides in connection with their presentation at the hearing by no later than noon on April 20, 2026. Oral testimony and written materials to be submitted at the public hearing are governed by sections 201.6(b)(2), 201.13(f), and 207.24 of the Commission's rules. Parties must submit any request to present a portion of their hearing testimony *in camera* no later than 7 business days prior to the date of the hearing.
*Written submissions.* —Each party who is an interested party shall submit a prehearing brief to the Commission. Prehearing briefs must conform with the provisions of § 207.23 of the Commission's rules; the deadline for filing is April 14, 2026. Parties shall also file written testimony in connection with their presentation at the hearing, and posthearing briefs, which must conform with the provisions of § 207.25 of the Commission's rules. The deadline for filing posthearing briefs is April 28, 2026. In addition, any person who has not entered an appearance as a party to the investigations may submit a written statement of information pertinent to the subject of the investigations, including statements of support or opposition to the petition, on or before April 28, 2026. On May 13, 2026, the Commission will make available to parties all information on which they have not had an opportunity to comment. Parties may submit final comments on this information on or before May 15, 2026, but such final comments must not contain new factual information and must otherwise comply with § 207.30 of the Commission's rules. All written submissions must conform with the provisions of § 201.8 of the Commission's rules; any submissions that contain BPI must also conform with the requirements of §§ 201.6, 207.3, and 207.7 of the Commission's rules. The Commission's *Handbook on Filing Procedures,* available on the Commission's website at *https://www.usitc.gov/documents/handbook_on_filing_procedures.pdf* , elaborates upon the Commission's procedures with respect to filings.
Additional written submissions to the Commission, including requests pursuant to § 201.12 of the Commission's rules, shall not be accepted unless good cause is shown for accepting such submissions, or unless the submission is pursuant to a specific request by a Commissioner or Commission staff.
In accordance with §§ 201.16(c) and 207.3 of the Commission's rules, each document filed by a party to the investigations must be served on all other parties to the investigations (as identified by either the public or BPI service list), and a certificate of service must be timely filed. The Secretary will not accept a document for filing without a certificate of service.
*Authority:* These investigations are being conducted under authority of title VII of the Tariff Act of 1930; this notice is published pursuant to § 207.21 of the Commission's rules.
By order of the Commission.
Issued: December 10, 2025.
Lisa Barton,
Secretary to the Commission.