ISO 24535:2007

Intelligent transport systems — Automatic vehicle identification — Basic electronic registration identification (Basic ERI)

ISO 24535:2007 supports simple systems for "basic electronic registration identification" ("basic ERI") for use in intelligent road transport applications. ISO 24535:2007 "basic ERI" defines the: specification of a unique vehicle identifier (using an International Standard, or non-standard, data concept); "basic ERI" functional capabilities, selectable for different "basic ERI" applications; and minimum data interoperability requirements between basic electronic registration tags (ERTs) and electronic registration readers (ERRs). ISO 24535:2007 allows, but does not require, vehicle-related data storage in addition to the unique vehicle identifier. ISO 24535:2007 is consistent with the ERI architecture defined in ISO/TS 24534-1 and data concepts defined in ISO/TS 24534-3, but is not necessarily interoperable with, the more capable and "fully featured" ERI communication systems to be defined in ISO/TS 24534-4 or ISO/TS 24534-5. ISO 24535:2007 defines a "basic ERI" system with security adequate for information that is currently available manually (such as license plate and/or VIN data), but it does not purport to provide the high levels of security required for some administrative requirements. Those requiring high security are advised to follow the relevant parts of ISO/TS 24534. Although not part of ISO 24535:2007, the employed technologies supporting ISO 24535:2007 may enable additional non-standard security measures to be added for specific applications It is not the purpose of ISO 24535:2007 to define "basic ERI" applications. ISO 24535:2007 requires the use of an air interface communication that complies with an international or regional standard whose protocols are publicly defined and available in that standard, but ISO 24535:2007 does not define such an air interface, nor specify which standard air interface is used for any particular implementation. ISO 24535:2007 limits its scope to: the requirement that a standard air interface with publicly available protocols is used; the use of data concepts consistent with ISO/TS 24534-3; and the ability to additionally use private data concepts.

Systèmes intelligents de transport — Identification automatique des véhicules — Identification d'enregistrement électronique de base (ERI de base)

General Information

• Status: Published
• Publication Date: 09-Sep-2007
• ICS: 03.220.20 - Road transport
• ICS: 35.240.60 - IT applications in transport
• Technical Committee: ISO/TC 204 - Intelligent transport systems
• Drafting Committee: ISO/TC 204 - Intelligent transport systems
• Current Stage: 9060 - Close of review
• Completion Date: 02-Sep-2029

Overview

ISO 24535:2007 - Intelligent transport systems - Automatic vehicle identification - Basic electronic registration identification (Basic ERI) - defines a lightweight, low-cost framework for uniquely identifying road vehicles using an in‑vehicle tag (ERT) and roadside or mobile reader (ERR). The standard specifies the unique vehicle identifier, selectable functional capabilities for different basic ERI use cases, and minimum data interoperability between ERTs and ERRs. ISO 24535:2007 requires use of a publicly defined air interface but does not mandate which radio protocol to use. It targets simple ITS applications where security requirements are comparable to manually available vehicle data (license plate, VIN), and not the higher-security administrative systems covered by related TS documents.

Key topics and technical requirements

• Unique vehicle identifier: Specification for carrying a standardized or non‑standard identifier on the ERT.
• Functional capabilities: A set of selectable, basic ERI functions appropriate for simple identification applications.
• Data interoperability: Minimum requirements ensuring ERT/ERR can exchange the identifier and, optionally, additional vehicle-related data.
• Air interface requirement: Implementations must use an air interface standardized at an international, regional or national level with publicly available protocols (the standard does not define the air interface itself).
• Security scope: Designed for moderate security levels appropriate to data already available manually; high‑security administrative needs are referred to ISO/TS 24534‑4 and ISO/TS 24534‑5.
• Operational and installation considerations: Environmental, safety, installation, operational parameters, tamper‑detectable feature (optional).
• Conformance and testing: Compliance requires certification by an Accredited Independent Testing Body (AIB) approved by the relevant nation state.

Practical applications and users

ISO 24535:2007 is aimed at practitioners needing a simple, interoperable means of automatic vehicle identification:

• Road traffic authorities and vehicle registration agencies (basic electronic IDs, vignettes, compliance marking)
• Tolling and parking operators seeking simple vehicle presence/ID
• ITS integrators and system vendors implementing low‑cost ERT/ERR deployments
• Vehicle manufacturers fitting basic ERTs as an enabling technology
• Agencies using ERI to support vehicle end‑of‑life processes or enforcement where high security is not required

Benefits include reduced manual processing, faster roadside verification, improved traffic management and crime reduction through reliable unique vehicle identification.

Related standards

• ISO/TS 24534‑1, ‑2, ‑3, ‑4, ‑5 (ERI architecture, operational requirements, vehicle data, secure communications)
• ISO 14815, ISO 14816 (AVEI system specs and data structures)
• ISO/IEC 8825‑2; IEC 60215; EN 300 220; EN 301 489; FCC Part 15; ARIB T75 (radio/encoding and regulatory references)

Keywords: ISO 24535:2007, basic ERI, electronic registration identification, automatic vehicle identification, intelligent transport systems, ERT, ERR, vehicle identifier, air interface, interoperability, ITS.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 24535
First edition
2007-09-15
Intelligent transport systems —
Automatic vehicle identification — Basic
electronic registration identification
(Basic ERI)
Systèmes intelligents de transport — Identification automatique des
véhicules — Identification d'enregistrement électronique de base
(ERI de base)
Reference number
©
ISO 2007
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ii © ISO 2007 – All rights reserved

Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Conformance. 2
3 Normative references . 2
4 Terms and definitions. 3
5 Abbreviated terms . 4
6 System concept . 4
7 Requirements . 5
7.1 Environmental conditions. 5
7.2 Safety requirements . 5
7.3 Installation . 5
7.4 Operational parameters . 6
7.5 System requirements . 7
7.6 Data requirements . 8
7.7 Vehicle identifier . 8
7.8 Technology. 8
8 Tamper-detectable feature (optional). 9
Annex A (informative) Candidate air interface standards . 10
Bibliography . 11

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 24535 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.
iv © ISO 2007 – All rights reserved

Introduction
Electronic registration identification (ERI) is used, or can be used, for a number of purposes and with a range
of levels of security. This International Standard provides for a basic ERI functionality for the exchange of data
between an in-vehicle component containing the ERI data and a reader or writer inside or outside the vehicle.
Other International Standards in this family of ERI standards, ISO/TS 24534-4 and ISO/TS 24534-5, are being
developed to service a range of ERI requirements. The relationship between the various parts of ISO 25434
and ISO 24535 are shown in Figure 1.
This International Standard defines a “basic ERI” system with security adequate for information that is
currently available manually (such as license plate and/or VIN data). This International Standard does not
purport to provide the high levels of security, authentication and confidentiality required for some
administrative requirements (those requiring high-security fully featured systems are advised to follow
ISO/TS 24534-4 or ISO/TS 24534-5).
In its most fundamental form, “basic ERI” simply provides unique vehicle identification. However the
“basic ERI” concept allows for the transmission of additional application-relevant data.
Different envisaged applications require some or all of these aspects. Simple registration identification
requires a basic communication stack together with moderate levels of security. If there are national security
issues or there is personal confidential information stored, the levels of security and encryption need to be
more comprehensive.
However, while many applications require an ISO/TS 24534-4 or ISO/TS 24534-5 “fully featured” operational
environment, a rapidly emerging, and urgent, need has also been identified within road traffic administrations
to provide a simple unique electronic identification of registered vehicles. Such applications may frequently be
those where visible information is currently supplied in the form of, for example, the vehicle registration
numberplate, VIN number, or a vignette to publicly display registration and compliance with vehicle testing,
payment of excise duties, but is not necessarily restricted to those applications. Such applications may not
require the levels of security associated with the more demanding requirements envisaged within security,
regulatory, enforcement, or anonymous environments.
“Basic ERI” is defined in this International Standard as an electronic system that uniquely identifies a
registered vehicle. It incorporates an electronic device that allows the unique, remote and reliable
communication of one or more identifying parameters of a vehicle. It typically comprises an in-vehicle data
storage element and a vehicle-to-infrastructure data communication element.
“Basic ERI” is a simple means of uniquely identifying road vehicles using a system that can be implemented
and deployed at minimum cost. The widespread application of “basic ERI” offers significant benefits over
existing manual techniques for vehicle identification. “Basic ERI” addresses the need of authorities and other
users for simple electronic identification of roaming vehicles. The identification data always includes a unique
vehicle identifier and can also include other data typically found in the vehicle's registration certificate and
other data related to specific applications.
“Basic ERI” is an application in its own right, allowing the electronic identification of vehicles. But more
importantly, it acts as an enabler, making many other applications more effective through the provision of
vehicle identification information. It will contribute to the improvement of road safety and traffic management,
reduce crime, and enhance the operational efficiency of public authorities.
Electronic registration identification can also be used in support of vehicle end-of-life mandatory provisions,
such as Directive 2000/53/EC of the European Parliament on end-of-life vehicles (ELV directive).
Whilst the requirements for “basic ERI” can be less demanding than those for ISO/TS 24534-4 or
ISO/TS 24534-5 “fully featured” ERI, it is important that the basic data concepts utilised are common with
those defined in ISO/TS 24534-3. (ISO/TS 24534-4 and ISO/TS 24534-5 are also capable of instantiation in
different degrees of capability, and the reader is advised to study all three International Standards to find that
most suitable to their needs).

Figure 1 — Functional stack accommodating both “fully featured” and “basic ERI”
vi © ISO 2007 – All rights reserved

INTERNATIONAL STANDARD ISO 24535:2007(E)

Intelligent transport systems — Automatic vehicle
identification — Basic electronic registration identification
(Basic ERI)
1 Scope
This International Standard supports simple systems for “basic electronic registration identification”
(“basic ERI”) for use in intelligent road transport applications.
This International Standard “basic ERI” defines the
⎯ specification of a unique vehicle identifier (using an International Standard, or non-standard, data
concept),
⎯ “basic ERI” functional capabilities, selectable for different “basic ERI” applications,
⎯ minimum data interoperability requirements between basic electronic registration tags (ERTs) and
electronic registration readers (ERRs).
This International Standard allows, but does not require, vehicle-related data storage in addition to the unique
vehicle identifier.
This International Standard is consistent with the ERI architecture defined in ISO/TS 24534-1 and data
concepts defined in ISO/TS 24534-3, but is not necessarily interoperable with the more capable and “fully
featured” ERI communication systems to be defined in ISO/TS 24534-4 or ISO/TS 24534-5.
This International Standard defines a “basic ERI” system with security adequate for information that is
currently available manually (such as license plate and/or VIN data) but it does not purport to provide the high
levels of security required for some administrative requirements. Those requiring high security are advised to
follow the relevant parts of ISO/TS 24534.
Although not part of this International Standard, the employed technologies supporting this International
Standard may enable additional non-standard security measures to be added for specific applications.
NOTE The “basic ERI” system implies the use of a basic ERT. Interrogators may or may not support both
ISO/TS 24534-4 or ISO/TS 24534-5 and this International Standard, this being a commercial and not a standardization
decision.
It is not the purpose of this International Standard to define “basic ERI” applications.
This International Standard requires the use of an air interface communication that complies with an
international, regional, or national standard whose protocols are publicly defined and available in that standard,
but this International Standard does not define such an air interface, nor specify which standard air interface is
used for any particular implementation.
This International Standard limits its scope to
⎯ the requirement that a standard air interface with publicly available protocols is used,
⎯ the use of data concepts consistent with ISO/TS 24534-3,
⎯ the ability to additionally use private data concepts.
2 Conformance
In order to claim compliance with this International Standard, successful compliance testing shall be certified
by an Accredited Independent Testing Body (AIB) approved by the nation state.
Where ERT performance is specified in terms of existing International Standards that contain verification
procedures, then those procedures shall be used for verification.
3 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 14815:2005, Road transport and traffic telematics — Automatic vehicle and equipment identification —
System specifications
ISO 14816:2005, Road transport and traffic telematics — Automatic vehicle and equipment identification —
Numbering and data structure
ISO/TS 24534-1, Automatic vehicle and equipment identification — Electronic Registration Identification (ERI)
for vehicles — Part 1: Architecture
ISO/TS 24534-2, Automatic vehicle and equipment identification — Electronic Registration Identification (ERI)
for vehicles — Part 2: Operational requirements
ISO/TS 24534-3, Automatic vehicle and equipment identification — Electronic Registration Identification (ERI)
for vehicles — Part 3: Vehicle data
ISO/TS 24534-4, Automatic vehicle and equipment identification — Electronic Registration Identification (ERI)
for vehicles — Part 4: Secure communications using asymmetrical techniques
ISO/TS 24534-5, Automatic vehicle and equipment identification — Electronic Registration Identification (ERI)
for vehicles — Part 5: Secure communications using symmetrical techniques
ISO/IEC 8825-2, Information technology — ASN.1 encoding rules — Part 2: Specification of Packed Encoding
Rules (PER)
IEC 60215, Safety requirements for radio transmitting equipment
IEC 61000-4-2, Electromagnetic compatibility (EMC) — Part 4-2: Testing and measurement techniques —
Electrostatic discharge immunity test
EN 300 220-1, Electromagnetic compatibility and radio spectrum matters (ERM) — Short range devices
(SRD) — Technical characteristics and test methods for radio equipment to be used in the 25 MHz to
1 000 MHz frequency range with power levels ranging up to 500 mW — Part 1: Parameters intended for
regulatory purposes
EN 300 220-3, Electromagnetic compatibility and radio spectrum matters (ERM) — Short range devices
(SRD) — Radio equipment to be used in the 25 MHz to 1 000 MHz frequency range with power levels ranging
up to 500 mW — Part 3: Harmonized EN covering essential requirements under article 3.2 of the R&TTE
directive
EN 301 489-1, Radio equipment and services — EMC — Part 1: Common technical requirements
EN 301 489-3, Radio equipment and services — EMC — Part 3: Specific conditions for short range devices
(SRD) operating on frequencies between 9 kHz and 40 GHz
2 © ISO 2007 – All rights reserved

ARIB T75, Dedicated short-range communication system, Association of Radio Industries and Businesses
(ARIB), Japan
FCC Part 15, Unlicensed RF devices, USA Federal Communications Commission
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4.1
authentication
assurance by interactive electronic means of device authenticity between communication partners
4.2
basic ERI system
system providing unique identification of a vehicle by wireless communications between an electronic
registration tag carried on a vehicle and an electronic registration reader that can fulfil the requirements
defined in this International Standard
4.3
...