SIST-TS CEN/TS 15523:2011

SLOVENSKI STANDARD
01-november-2011
1DGRPHãþD
SIST-TS CEN/TS 15523:2007
Poštne storitve - Izjava o dostavi pisemske pošiljke
Postal Services - Statement of mailing submission
Postalische Dienstleistungen - Übertragung von Daten für Briefanlieferungen
Services postaux - Déclaration de dépôt du courrier
Ta slovenski standard je istoveten z: CEN/TS 15523:2011
ICS:
03.240 Poštne storitve Postal services
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 15523
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
September 2011
ICS 03.240 Supersedes CEN/TS 15523:2006
English Version
Postal Services - Statement of mailing submission
Services postaux - Déclaration de dépôt du courrier Postalische Dienstleistungen - Übertragung von Daten für
Briefanlieferungen
This Technical Specification (CEN/TS) was approved by CEN on 4 June 2011 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15523:2011: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .5
1 Scope .8
2 Normative references .8
3 Terms and definitions .9
4 Symbols and Abbreviations . 12
5 General Concepts . 13
5.1 Mail communication system domains . 14
5.2 Parties, agents and their roles . 14
5.2.1 Party attribute . 16
5.2.2 Agent attribute . 16
5.3 Physical objects . 16
5.3.1 Mail item . 16
5.3.2 Mail unit . 16
5.3.3 Mail receptacle . 17
5.3.4 Aggregate . 17
5.3.5 Mailing submission, acceptance and submission group . 17
5.4 Informational objects . 19
5.4.1 Mail unit attribute . 19
5.4.2 Mail receptacle attribute . 20
5.4.3 Aggregate attribute . 21
5.4.4 Aggregate catalogue . 21
5.4.5 Statement of mailing submission . 21
5.4.6 Electronically exchanged message . 21
5.4.7 Observation . 22
5.4.8 Observation attribute . 22
5.4.9 Expectation . 22
5.4.10 Postal product/service . 23
5.4.11 Postal product/service attribute . 25
5.4.12 Contract and contract attributes . 25
5.5 Mailer domain process . 25
5.5.1 Message/content preparation . 26
5.5.2 List selection . 26
5.5.3 List preparation . 26
5.5.4 Electronic sortation . 27
5.5.5 Printing . 27
5.5.6 Insertion . 27
5.5.7 Finishing . 27
5.5.8 Physical sortation . 27
5.5.9 Containerisation. 27
5.5.10 Transportation . 27
5.5.11 Induction . 27
5.6 Interfaces . 28
6 Statement of mailing submission (SMS) . 28
6.1 SMS structure . 29
6.2 Message Content . 30
6.2.1 SMS.Header . 30
6.2.2 SMS.Submission . 33
6.2.3 SMS.Parties . 38
6.2.4 SMS.Handover . 41
6.2.5 SMS.Aggregates . 42
6.2.6 SMS.MailUnits . 45
6.3 Message Format . 50
6.4 Communication Protocol . 51
6.5 Communication channel security . 51
7 Application Security . 52
7.1 Introduction . 52
7.2 Threats and Vulnerabilities. 52
7.3 Applications and Message Level Security . 56
7.4 Security Services and Message-level Countermeasures . 58
7.5 Application-level Countermeasures . 60
7.5.1 Access and Usage Controls . 60
7.5.2 Countermeasures against Counterfeiting . 61
7.5.3 Countermeasures against Duplication (copying) . 62
7.5.4 Countermeasures against Inappropriate Induction . 63
7.5.5 Countermeasures against Miss-Application . 63
7.5.6 Countermeasures against collusion . 64
7.5.7 Countermeasures against Impersonation . 64
7.5.8 Obliteration countermeasures . 65
7.5.9 Countermeasures against inappropriate Refund Request . 65
Annex A (informative) Examples of SMS documents . 66
A.1 Identical postcards . 67
A.1.1 Text of the XML document: . 68
A.1.2 Screen snapshot of XML document . 73
A.2 First class envelopes with ranges of unique identifiers . 74
A.2.1 Text of the XML document: . 75
A.2.2 Screen snapshot of XML document . 78
A.3 Uniquely identified first class envelopes . 79
A.3.1 Text of the XML document: . 79
A.3.2 Screen snapshot of XML document . 83
Annex B (informative) Text of the XML Schema for SMS . 84
Annex C (informative) Example of a protocol for secure communication of EEM . 93
C.1 Set up for ECDSA scheme . 93
C.2 Protocol . 94
C.2.1 Part 1: Message generation . 94
C.2.2 Part 2: Message Verification . 95
Bibliography . 96

Foreword
This document (CEN/TS 15523:2011) has been prepared by Technical Committee CEN/TC 331 “Postal
Services”, the secretariat of which is held by NEN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TS 15523:2006.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
NOTE This document has been prepared by experts coming from the Technical Committee CEN/TC 331 “Postal
Services” and UPU, under the frame of the Memorandum of Understanding between UPU and CEN.
1)
The UPU‟s contribution to the specification was made, by the UPU Standards Board and its subgroups, in
accordance with the rules given in Part V of the "General information on UPU standards".
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

1)
The UPU's Standards Board develops and maintains a growing number of standards to improve the exchange of postal-related
information between posts, and promotes the compatibility of UPU and international postal initiatives. It works closely with posts,
customers, suppliers and other partners, including various international organizations. The Standards Board ensures that coherent
standards are developed in areas such as electronic data interchange (EDI), mail encoding, postal forms and meters. UPU standards are
published in accordance with the rules given in Part VII of the General information on UPU standards, which can be freely downloaded

from the UPU world-wide web site (www.upu.int).
Introduction
Widespread proliferation of electronic, internet-based data communications provides a cost-effective platform
for integrating a global mail communication system. The essence of such integration is an automated
exchange of computerised information between mailer‟s, postal and recipient‟s domains. Within each of these
domains there is a wealth of information that has been or could be collected, computerised and subsequently
communicated to other domains to enhance the overall mail system. This information is typically information
about mail units and it allows for effective control and management of the entire mail distribution network.
Most commercial-purpose mail is created and finished with the help or under control of computer-driven
equipment. Mail-descriptive computerised data is a by-product of the mail creation/finishing process and it has
significant value for both postal operators and their agents and frequently for mail recipients. Specifically,
when a plurality of mail items (designated as a mailing submission) are prepared for induction into a postal
distribution network by a mailer, it is only natural that the mailing submission should be accompanied by an
electronic document (or computer file) that is commonly referred to as a statement of mailing submission. The
main goal of the statement of mailing submission (SMS) is to provide support information for mission-critical
applications in the mail communication system, and specifically for applications in the postal domain. The
most important applications in the postal domain come from operations (mail entry/induction,
processing/sorting, transportation and delivery), postal marketing (maintenance of existing products and
services, design of new postal products and services, customer relationship management and management of
quality of service), and finance (revenue management including collection and protection of revenue).
The main purpose of the present technical specification is to define basic concepts associated with the
statement of mailing submission (framed using methodology of an entity-relationship model), and then to
define the content, message structure and protocol that can be used by mailers or their agents to
communicate to posts information supporting major postal applications, and also to provide a detailed analysis
of application-level security.
The following section describes information requirements supporting major postal processes.
Postal operations information requirements
Mail entry/induction process is a controlled acceptance process that is designed to enable transfer of typically
medium or large size mailings (e.g. mailings containing more than several hundred mail items) from mailers or
their agents to postal operators. Mail entry process involves verification of mail make-up (i.e. check of the
information present on mail units for its postal process friendliness) and verification of payment. The process
is based on comparison of information created or otherwise known to postal acceptance personnel against
information supplied by mailer. Critical data elements supporting mailing submission entry are:
Mailing submission composition such as number of mail units of various kind contained in the submission;
Type and identities of mail units included into submission;
Gross and net weight of mail units included into submission and gross and net weight of the submission
itself;
Worksharing information if mailing submission has been pre-sorted or contains mail pre-barcoded by
mailer or its agents. This information includes geographic distribution (number and type of mail units for
each postal code), postal codes assigned to and marked on each mail unit as well as information
concerning quantity, location and markings for all non-qualified (or residual) entities;
Payment information including accounting information and postage information for various categories of
postal products included in the mailing and totals for each category;
Identity of the SMS associated with the mailing submission;
Security information such as key certificates as described in the present specification (Annex D).
Mail processing information requirements support cost-effective mail sorting. In addition to the information
identified above, the mail sort-supporting electronic information may include identities of all mail units included
in the submission linked with their associated address information including postal codes.
Mail transportation information requirements support cost-effective transportation of mail units and aggregates
between postal processing and delivery offices. Thus, in addition to the information identified in the previous
sections, mail transportation-supporting information may include (if they are known during mail preparation
process) identities and scheduling data for various transportation vehicles (trucks, railroad cars, aircrafts and
boats) that will be used for transporting mailing submission.
Mail delivery process information requirements support cost-effective delivery of mail. In addition to the
information described above mail delivery-supporting information may include number, identity and type of
mail units that require special delivery or handling (e.g. proof of delivery or return receipt).
Postal marketing information requirements
Marketing information is mainly concerned with a detailed description of a mailer‟s use of various postal
products and services offered by a postal operator. These may include:
Number of first class mail items included in the submission;
Number of second class mail items included in the submission;
Number of special rate mail items (e.g. overweight or oversize);
Number of mail items that require special delivery (e.g. registered, certified, time-specific delivery etc.);
Number of items that require forwarding services or address correction;
Preferred delivery instructions, redirection and address services (e.g. address hygiene).
Postal finance information requirements
Postal financial applications require an effective payment mechanism for the services by mailers or their
agents. These include automatic generation of all required accounting and funds transfer data and its
supporting documentation for billing and remittance processing. Finance information should include as a
minimum data elements that allow to:
Create, delete and update customer accounts (e.g. unique account IDs);
Identify products and services used by the mailer together with their current tariffs;
Identify mail attributes (e.g. item count, weight, volume) for specific postal products and services;
Support payment for Business Reply and other recipient-paid services;
Automate the receipt and processing of payments (e.g. by using Electronic Funds Transfer);
Automate the processing of all legitimate refunds to mailers;
All required management and control supporting reports.
Methodology
The methodology adopted for the organisation of SMS begins with a data structure describing all practical
knowable information about mailing submission. This data structure containing all-inclusive information is a
sort of a “super” file or “super” message. The specification describes how to collapse (or cluster) this super
message into new data structures suitable for particular postal applications. This is done by eliminating the
non-essential information depending on the informational needs and requirements of postal applications.
Selection (or adaptation) of data elements, their formats and communication protocols for various specific
applications and environments for the SMS from the ones described in the present specification are left to
postal operators and their customers. It was felt that no group of experts would have sufficiently detailed
knowledge of a broad variety of existing and future postal applications and technical environments in order to
accommodate even the most common ones. For this reason, it was decided that providing a definition of a
super, all-inclusive and adaptable message and the methodology of collapsing it into application-specific
messages (statements) would be the best choice. Similarly, timing considerations for various possible
messages that could be exchanged between mailer and postal domains are outside of the scope of the
present specification. Messages that are defined and described here can be arranged to be created by
mailers and communicated to postal operators before, during or after the actual induction process takes place,
depending on the value and the intended use of the communicated information. The specification leaves the
choice of timing considerations to postal operators and their customers.
1 Scope
This Technical Specification specifies a methodology that allows postal operators to define specific statements
of mailing submission customised according to their environment and applications.
The document defines information requirements for existing generic postal information processing applications
related to major postal functions, namely operations, finance and marketing by specifically identifying the
information that could be collected within the mailer‟s domain and transmitted to the postal domain.
In addition, this document defines the organisation of data into messages by describing data content, format
and communication protocol suitable for communication of data originating in the mailer‟s domain.
The specification also provides a detailed analysis and recommendations for implementing application-level
security threats and countermeasures particularly relevant for postal revenue protection in controlled mail
entry settings.
Finally, this document provides several examples of concrete statements of mailing submissions and an
example of a secure communication protocol recommended for transmission of such statements.
NOTE The SMS describes letter mail or flats that are submitted for distribution and would not deal explicitly with
content of letters or flats whether it concerns customs or any other party that could in principle be interested in knowing the
content of these mail units.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, or references to a version number, only the edition cited applies. For undated references and
where there is no reference to a version number, the latest edition of the referenced document (including any
amendments) applies.
EN 14615:2005, Postal services – Digital postage marks – Applications, security and design
ISO 10126-2:1991, Banking – Procedures for message encipherment (wholesale) – Part 2: DEA algorithm
ISO/IEC 9798-3:1998, Information technology – Security techniques – Entity authentication – Part 3:
Mechanisms using digital signature techniques
ISO/IEC 15418, Information technology – Automatic identification and data capture techniques – GS1
Application Identifiers and ASC MH10 Data Identifiers and maintenance
ISO/IEC 15434, Information technology – Automatic identification and data capture techniques – Syntax for
high-capacity ADC media
ISO/IEC 15459-1, Information technology – Unique identifiers – Part 1: Unique identifiers for transport units
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
address list selection
process of selecting a mailing address for the intended recipient of the message
3.2
agent
entity involved in any part of the provision of postal services in respect of a mail unit
3.3
agent attribute
characteristic of the agent which is or can be represented by a data value
3.4
communication domain
set of parties, agents, and processes that together play a specific functional role (such as sender, channel or
recipient) in a mail communication system
3.5
consolidator
party that is responsible for assembling mail units from a given creator together with mail units from other
creators
3.6
containerisation
process of assembling together and putting mail units into receptacles for transportation
3.7
controlled acceptance/entry mail (CAM/CEM)
mail unit or mail aggregate that is examined by postal personnel before being accepted for processing for the
purpose of compliance with postal regulations concerning proper payment (accounting) and mail make up
3.8
mail creator
party that is responsible for production (creation) of a mail item, a mail unit or an aggregate
3.9
electronic sortation
process of sorting a list of mailing addresses into groups having common characteristics (such as identical
postal codes)
3.10
electronically exchanged message
EEM
electronic message sent or received by a mailer or postal operator during the process of mail creation,
preparation, submission, acceptance, processing and delivery
3.11
expectation
set of mail unit attribute name-value pairs predicted, derived or assumed for a given date or a date range
3.12
finishing
process of direct printing of information on (or applying labels containing information to) assembled mail units,
said information concerning payment evidence and endorsements required for the entry of finished mail units
into the postal distribution network
3.13
insertion
process of folding printed message(s), assembling the content (that includes the message and optional
additional enclosures) and inserting the entire content into a mailing envelope
3.14
list preparation (address cleansing)
process of comparing between mailing (postal) addresses in the selected address list and a standardised list
containing corrected and up-to-date postal addresses for the purpose of finding and correcting erroneous
entries in the selected list
3.15
mail unit
mail item or collection of mail items which are constrained to form a physical unit
3.16
mail unit attribute
characteristic of a mail unit which is or can be represented by a data value
3.17
mail induction/entry
process whereby mail units are handed over to a postal operator and which results in either the postal
operator taking responsibility for the mail units concerned or rejecting all or some of the mail units presented
for hand over
3.18
mail item
item
mailpiece
postal item
indivisible mailable entity in respect of which a mail service contractor accepts an obligation to provide postal
services
3.19
mail receptacle
physical device which may be used to contain or carry mail so as to assist in its handling, transportation,
storage or delivery as a unit
EXAMPLE Mailbags, trays, recipient mailbox, wheeled containers (roller cages), pallet and pallet-based containers
and airfreight containers (ULDs).
NOTE Receptacles may contain mail which is housed in other (lower level) receptacles. For example, a roller cage
may contain trays and/or bags of mail as well as individual (loose loaded) mail items and bundles. Some types of postal
receptacle (e.g. roller cages and ULDs) have a residual value; others need not (e.g. disposable trays).
3.20
mail receptacle attribute
characteristic of a mail receptacle which is or can be represented by a data value
3.21
mail aggregate
aggregate
set of mail units that satisfy specific criteria defined in the context of a particular application
3.22
aggregate attribute
characteristic of an aggregate which is or can be represented by a data value
3.23
aggregate catalogue
collection of attribute names for mail units included in an aggregate
3.24
mailing submission
mail aggregate which has a unique identification and is presented or handed over for processing, by a postal
operator, as part of a single induction unit
3.25
message preparation
process of preparing data that is designed to be sent as a message (content of a mail item) to the intended
recipient
3.26
observation
set of mail unit attribute name-value pairs captured at a given date
3.27
observation attribute
set of name-value pairs related to or characterising the observation process
3.28
originator
party that controls a mail unit‟s content (i.e. the message to the recipient) and the mail unit‟s destination
address and has the overall legal control and responsibility for the mail unit
3.29
party
legal entity involved in a mail communication process
3.30
party attribute
characteristic of the party which is or can be represented by a data value
3.31
payer
party responsible for payment of postal/carrier charges for services rendered by mail services contractor in
respect of a mail unit
3.32
physical sortation
process of sorting mail units into groups having common characteristics (such as identical postal codes)
3.33
postal product/service
agreed-upon set of rules operating on the values of mail unit attributes governing both actions to be taken on
the mail unit and communication of observations to all authorised parties
3.34
postal product/service attribute
characteristic of a postal product which is or can be represented by a data value
3.35
post/carrier domain
domain of the mail unit collection, acceptance, processing, transportation and delivery that includes all parties,
agents, processes and their relationships that are involved in these activities
3.36
process in the mailer domain
series of sequential functional activities (or sub-processes) within the mailer domain resulting in finished mail
units and aggregates being ready for entry into a postal/carrier distribution network
3.37
process in the postal domain
series of sequential functional activities (or sub-processes) within the postal domain including collection,
facility entry, acceptance, processing (culling, facing, sorting), containerisation and transportation resulting in a
mail unit being delivered to a recipient, discarded or returned to the mail originator (or a party authorised by
the mail originator)
3.38
recipient domain
domain of the mail unit receipt and after receipt processing including activities when the mail unit has been
received by a party or an agent other than the party specifically indicated by the sender as a recipient. It
includes all parties, agents, processes and their relationships that are involved in these activities
3.39
sender/mailer domain
domain of the mail unit creation, finishing and submission for delivery that includes all parties, agents,
processes and their relationships that are involved in these activities
3.40
statement of aggregate
collection of attribute name-value pairs for an aggregate assembled for the purpose of a specific application in
the context of which the mail units comprising the aggregate form a logical unit
3.41
statement of mailing submission
collection of attribute name-value pairs which specifies a mailing submission and its content
3.42
submission group
aggregate consisting of a collection of mailing submissions that share an explicitly specified common attribute
or attributes
3.43
submitter
party responsible for submitting (inducting) a mail unit or an aggregate into postal/carrier distribution network
4 Symbols and Abbreviations
CAM controlled acceptance mail
CEM controlled entry mail
DPM digital postage mark
EEM electronically exchanged message
ID (identifier for) identity
MU mail unit
MS mailing submission
MS-ID mailing submission identifier
PSD postal security device.
NOTE Throughout this document, the following notation is used: entity.attribute. For example, the mail unit identifier
is designated as “mailunit.ID”.
5 General Concepts
This clause provides a detailed explanation for the basic concepts defined in the previous clause and the
motivation behind introducing these concepts and their definitions.
This clause provides the background, motivation and an explanation for all concepts and objects defined in
Clause 3.
General concepts are described referring to a mail communication system diagram presented in Figure 1.

Figure 1 – Mail communication system diagram
5.1 Mail communication system domains
The communication system is a system that enables a sender to send (communicate) a message to a
recipient using a communication channel. A mail communication system has three basic domains, namely the
domain of the message sender, the domain of the message carrier (the communication channel) and the
domain of the message recipient. In the context of a mail communication system, a message constitutes a
physical entity (defined in the present document as the mail unit) and as such, it is understood to constitute a
single physical object (mail item) or to include a broad variety of physical objects such as post cards, letters,
flats, parcels or packages constrained to form a physical unit. Specific to the mail communication system is
the notion that messages frequently have value other than informational value, for example monetary, legal or
social value.
There are three commonly considered domains, namely Sender/Mailer, Post/Carrier and Recipient. Each
domain can be described in terms of parties, agents, processes and their relationships. In the mail
communication system, parties involved in each domain are usually independent legal entities that are
nevertheless dependent on each other in the overall system process that involves creation and exchange of
material (mail units) and informational objects (mail unit attributes, observations, expectations and their
attributes) between domains.
5.2 Parties, agents and their roles
Parties involved in mail unit creation, finishing and submission for delivery are:
Originator;
Creator;
Payer;
Submitter;
Consolidator;
Bank (or other financial service institution involved in payment for mail unit creation, finishing and
distribution).
The originator is understood as the party that needs to use the mail communication system to send mail units
to (a list of) addresses that are chosen by the originator. The originator is also the primary beneficiary of
communication. In the context of business applications involving mail communications, the originator also
controls these applications, for example invoicing or product advertising.
The creator is understood as the party that controls physical process of mail unit creation, typically under a
contract with the mail originator (for example when the mail creator and originators are different legal entities).
The payer is defined as the party that pays for postal products and services; frequently the originator and
payer are the same legal entity.
The submitter performs the technical role of submitting mail units for induction into the mail distribution
network, while a consolidator combines mail units from multiple mail creators, in order to achieve certain
desirable characteristics for the resulting mail unit or aggregate. The most frequent reason and purpose for
consolidation is the value added by presorting or other worksharing activities. In the vast majority of cases the
consolidator also assumes the role of the submitter.
Finally the bank (which is used here synonymously with a financial institution) is capable of providing
necessary credit and funds transfer functions.
Modern mail communication systems involve computer-controlled electro-mechanical machinery (e.g. sorting
machines), transportation (e.g. delivery vehicles) and computer equipment (e.g. IT systems) and human
participants (e.g. post office clerks). Mail processing machines, equipment and human participants are
designated as agents. Agents involved in mail unit creation, finishing and submission for delivery are various
automated, semi-automated and manual systems and their operators such as inserters (mail assembly
machines), mailing machines, franking devices, mail sorters, containerisation systems, computerised
accounting devices (also known as postal security devices or PSDs), scanning devices and the like. For
example, mail sorting machines typically organise letters or flats into groups of mail items having identical
postal codes by using information present on mail items, such as a destination address block. Important
technology used by a vast majority mail sorting machines are either Optical Character Recognition or bar code
reading.
Frequently, post and carriers employ several subcontractors or trusted agents in the complex process of mail
acceptance, sortating, transportation and distribution. Parties involved in mail unit acceptance, induction,
processing, transportation and delivery are:
Originating postal operator (or a private carrier);
Destination postal operator (or a private carrier);
Consolidation contractor;
Transportation contractor;
Delivery contractor;
Bank (or other financial service institution involved in payment for mail unit acceptance, induction,
processing, transportation and delivery functions).
The originating postal operator or carrier may be the only party that is involved in mail unit/aggregate
processing, transportation and delivery. Such is the case when the mail unit destination address is within the
geographical boundaries of a country or territory where the originating postal operator is authorised to provide
mail communication services and when the originating postal operator does not employ any other legal
entities to perform such services. Alternatively, there could be several other legal entities involved in the
provision of mail communication services such as contractors and other postal operators or private carriers.
There also coul
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