49 CFR § 585.54 - Response to inquiries.

---
identifier: "/us/cfr/t49/s585.54"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 585.54 - Response to inquiries."
title_number: 49
title_name: "Transportation"
section_number: "585.54"
section_name: "Response to inquiries."
chapter_name: "NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "585"
part_name: "PHASE-IN REPORTING REQUIREMENTS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 322, 30111, 30115, 30117, and 30166; delegation of authority at 49 CFR 1.95."
regulatory_source: "69 FR 70916, Dec. 8, 2004, unless otherwise noted."
cfr_part: "585"
---


# 585.54 Response to inquiries.

Each manufacturer shall, upon request from the Office of Vehicle Safety Compliance, provide information identifying the tires (by make, model, brand and tire identification number) that have been certified as complying with the requirements of Standard No. 139. The manufacturer's designation of a tire as a certified tire is irrevocable.