ETC On-Board Unit ID Guide
The ETC on-board unit management number is a 19-digit identifier assigned to each ETC device. It is required for initial setup, re-setup, ETC mileage service registration, ETC usage inquiry service registration, disability discount registration, and certain limited discount programs. This number differs from your ETC card number and is essential for correctly linking vehicles to their devices.
Why this matters
When vehicle or device information changes, failure to reconcile setup records with the management number can result in incorrect usage statements. For accounting and expense reimbursement, you must clearly identify which card was used in which vehicle—the management number enables this verification. Centrally managing setup certificates, usage statement PDFs/CSVs, and internal records streamlines inquiries months later and audit responses.
Flow from OBU Number Check to Usage Reconciliation
Four steps to leverage your OBU management number, from setup certificate to usage statement verification.
- 1
Confirm OBU Number
Find the 19-digit number on setup certificate or OBU device
- 2
Register for Inquiry Service
Register ETC card, OBU number, and vehicle information
- 3
Download Usage Statements
Retrieve up to 15 months of records in PDF or CSV format
- 4
Reconcile & Archive
Organize by vehicle and store for expense claims or audits
JTR is not the official system. See official sources for exact specifications.
Official Sources for ETC OBU Management Numbers
Reliable information sources organized by purpose: setup, usage inquiry, and standard updates.
How to check OBU number, setup shop locator, standard change notices
All OBU topics
Download PDF/CSV statements, register cards and OBUs
Usage records
Confirm ETC card number, issue billing statements
Card info
OBU setup/re-setup, certificate issuance
Setup services
JTR is an independent service, not affiliated with the official organizations listed. Article content summarizes and organizes official information.
OBU Management Number vs. ETC Card Number
A comparison table to clarify the differences between these two commonly confused identifiers.
- Digits19 digits16 digits (varies by issuer)
- Where FoundOBU device, setup certificateETC card surface
- Required for SetupRequiredNot required
- Required for Inquiry ServiceRequiredRequired
- When Vehicle ChangesRe-setup requiredNo change needed (card is vehicle-independent)
Comparison details may change. Always verify with official sources.
OBU Number Record Organization Checklist
Seven key points to verify, from initial setup through regular reviews.
Digitize and store setup certificate as PDF
Paper certificates degrade; digital archiving is recommended
Record OBU number in internal vehicle registry
Manage together with vehicle registration for easy cross-reference
Register card and OBU with ETC Inquiry Service
After registration, you can retrieve up to 15 months of statements
Download usage statements in both PDF and CSV
PDF for viewing, CSV for accounting software import
Re-setup OBU when vehicle or plate changes
Without re-setup, statements may not be issued correctly
Reconcile usage records with billing monthly
Verify card-vehicle pairings are correct
Check if old-standard OBU needs replacement
Use OBU number to determine eligibility under new security standards
Accounting and tax decisions should be confirmed with your accountant or the tax office.
Who this page is for
- Corporate staff using ETC usage records for expense reimbursement and accounting
- Fleet managers overseeing multiple vehicles and cards
- Drivers completing setup or re-setup procedures
- Users organizing rental-car or company-vehicle usage records
How the official system works
The ETC on-board unit management number is a 19-digit number whose lookup method is published on the ETC Sogo Joho Portal. It appears on the device itself, the setup certificate, or vehicle inspection documents. Setup is performed at registered shops, where vehicle information, device information, and license plate details are correctly registered. Vehicle changes, license plate changes, or addition of towing equipment trigger re-setup requirements. The ETC usage inquiry service allows registered ETC card usage statements to be downloaded in PDF or CSV format, typically covering the past 15 months. Due to security standard updates, older devices require verification via the management number or setup certificate to determine eligibility.
JTR is not the official ETC inquiry service, NEXCO, or a toll operator. It is an independent report-delivery platform.
Common user problems
The real questions and frustrations behind this search
I don't understand the difference between on-board unit management number and ETC card number
The on-board unit management number is a 19-digit identifier assigned to the device itself and used for setup and mileage registration. The ETC card number is printed on the card and used for per-card usage inquiries. They are separate identifiers.
I lost my setup certificate
Request a reissue from the certified shop that performed setup, or locate the on-board unit management number on the device or manual, then follow official guidance to in-depth necessary procedures. Early action is recommended to maintain record consistency.
Can I keep using it after changing vehicles?
If the license plate, owner, vehicle classification, towing equipment, or other details change, re-setup is required. Using the unit without updating may result in incorrect tolls or invalidate mileage and discounts.
The link between usage records and vehicles is unclear
Cross-reference PDF and CSV records from the ETC usage inquiry service, internal vehicle rosters, and card statements to clarify which card was used with which vehicle. JTR supports record organization and review, but formal linking requires internal management.
How Japan Toll Receipts helps
JTR is an independent service supporting ETC usage record receipt, organization, storage, and review. JTR is not NEXCO, the ETC usage inquiry service, a card issuer, or a government agency. JTR does not generate official toll data; it organizes records for clarity.
- Store usage statements in PDF and CSV format for future reference
- Group records by ETC card or vehicle (when configured)
- Highlight records that warrant review to support early checks
- Streamline reconciliation against internal policies
- Help administrators detect unusual usage patterns early
Note: JTR surfaces "needs review" items and helps organize records — it does not confirm tax, legal, audit, or fraud judgments.
Step by step
Confirm setup certificate and on-board unit information
Gather your setup certificate, on-board unit documentation, vehicle registration, and currently used ETC card information, then verify that the on-board unit management number and vehicle details match official setup procedures.
Check vehicle and on-board unit change history
Review whether license plate, owner, on-board unit body, towing equipment, or other details have changed since initial setup, and assess whether re-setup is required if changes occurred.
Consult official guidance or certified installer
If setup records are outdated, information mismatches exist, or documentation is incomplete, consult a certified setup shop or official guidance and perform re-setup as necessary.
Verify operation after correction
After re-setup or information correction, conduct a controlled ETC trip and confirm that usage records appear correctly for the expected card and vehicle combination.
Store setup evidence and PDF/CSV records
Consolidate setup certificates, PDF and CSV usage statements, and internal vehicle assignment records in one location to support future inquiries or assistance requests.
Regular record review and consistency check
Export ETC usage records monthly or quarterly and cross-reference them with internal vehicle rosters, departmental allocations, and business trip logs to identify unexplained usage or missing entries.
PDF + CSV
JTR outputs usage records in PDF and CSV formats. PDF suits viewing and sharing; CSV is convenient for importing into accounting software and filtering operations. Retaining both formats makes expense reimbursement and audit responses more efficient.
Automated email delivery
Email delivery allows automatic receipt of usage records monthly or on-demand. Simultaneous distribution to multiple recipients—accounting, fleet management, drivers—accelerates information sharing and prevents record-keeping gaps.
Related JTR features that support this guide
Availability depends on plan and security role.
How JTR works
Detailed explanation of how JTR receives, organizes, and stores ETC usage records to support your review workflow.
Business plans
Record organization and review features for businesses and fleet managers with multiple vehicles, multiple cards, and departmental allocation needs.
Security
How JTR protects ETC usage records and vehicle information to ensure secure record management.
Use cases
Before submitting toll reimbursement claims, consult the ETC on-board unit management number guide to understand official information sources and record formats, then gather necessary evidence and submit.
Export PDF and CSV records monthly, cross-reference them with internal vehicle rosters and departmental allocation lists, and verify there are no unexplained usage entries or allocation errors.
When unfamiliar usage history is detected, review entry IC, exit IC, date, time, vehicle class, and card suffix in official ETC records to establish facts before contacting drivers.
Store rental agreement, ETC card statement, and official usage certificate together and submit as a in-depth reimbursement package to streamline accounting department review.
Frequently asked questions
Is JTR an official toll information source?
Should I save PDF or CSV records?
Can these records be used for tax filing or reimbursement?
What is the biggest risk in the on-board unit management number guide?
What if amounts or routes appear incorrect?
References
- ETC Usage Inquiry Service— Official inquiry service for ETC card usage. Supports issuance of usage certificates and download of PDF and CSV statements. Standard ETC card records cover the past 15 months.
- ETC General Information Portal: ETC Usage Inquiry Service— Explains eligible card types, usage certificate issuance, standard ETC card record period, corporate ETC card record period, wireless and non-wireless ETC usage, and PDF/CSV downloads.
- ETC General Information Portal: How to check on-board unit management number— Describes how to find the 19-digit on-board unit management number and its use for setup, ETC mileage, ETC inquiry service registration, disability discount registration, and certain ETC-only discounts.
- ETC General Information Portal: Setup— Official guidance on ETC and ETC2.0 setup and re-setup. Includes instructions for completing setup application forms and notes on security specifications.
- ETC Mileage Service— Official ETC mileage service. Earn points on eligible ETC tolls and redeem them for toll credits. Registration using the on-board unit management number is required.
Official information may change. Always verify with the current official source.
Related product pages
Continue the learning path
You are reading guide 106 of 135