0.    INTRODUCTION

       This specification provides the definition of the Means of
       transport and equipment position message (MEQPOS) to be used in
       Electronic Data Interchange (EDI) between trading partners
       involved in administration, commerce and transport.

1.    SCOPE

1.1   Functional Definition

       A message containing the position of a means of transport (e.g.
       a vessel or truck) and/or equipment related to a means of
       transport.

1.2   Field of Application

       The Means of transport and equipment position message may be
       used for both national and international applications. It is
       based on universal practice related to administration, commerce
       and transport, and is not dependent on the type of business or
       industry.

1.3   Principles

       * The message relates to one means of transport and/or
       equipment related to a means of transport.
       
       * The message contains the last reported position of the means
       of transport, e.g. at sea.
       
       * The message contains information on the conveyance of the
       means of transport, possibly including the number of people on
       board.
        
       Business area: control of pollution by a means of transport
       (e.g. maritime pollution)
       
       Sending function: truck's driver, vessel's master, authority
       (e.g. port, police), centralised database of authorities
       
       Receiving function: authority (e.g. port), search and rescue
       organisation

2.    REFERENCES

       See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction,
       Section 1.

3.    TERMS AND DEFINITIONS

3.1   Standard terms and definitions

       See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction,
       Section 2.

4.    MESSAGE DEFINITION

4.1   Data Segment Clarification

       This section should be read in conjunction with the Segment
       Table which indicate mandatory, conditional and repeating
       requirements.

   UNH, Message header
       A service segment starting and uniquely identifying a message.
       The message type code for the Means of transport and equipment
       position message is MEQPOS.
       
       Note: Means of transport and equipment position messages
       conforming to this document must contain the following data in
       segment UNH, composite S009:

       Data element  0065 MEQPOS
                     0052 D
                     0054 97A
                     0051 UN

   BGM, Beginning of message
       A segment to indicate the beginning of a message and to
       transmit the identifying number.

   DTM, Date/time/period
       A segment to provide the date and time of the message.

   QTY, Quantity
       A segment to indicate a quantity, such as the number of
       passengers on board the means of transport for a certain
       conveyance.

   LOC, Place/location identification
       A segment to specify the position of the means of transport,
       e.g. by giving longitude and latitude coordinates of the vessel
       at sea.


   Segment group 1: RFF-DTM
       A group of segments to specify a reference applying to the
       whole message.

      RFF, Reference
          A segment to specify a reference, e.g. reference to previous
          message.

      DTM, Date/time/period
          A segment to indicate a date and time related to the
          reference.


   Segment group 2: TDT-LOC-DTM
       A group of segments to indicate the details of the means of
       transport, and related locations and arrival dates and times.

      TDT, Details of transport
          A segment to identify the means of transport (e.g. by
          Lloyd's Register number of a vessel, or by the license plate
          number of a truck).

      LOC, Place/location identification
          A segment to indicate a location relating to the means of
          transport, such as: - place or port of departure - next
          place or port of call.

      DTM, Date/time/period
          A segment to indicate the estimated date and time of arrival
          and departure.


   Segment group 3: NAD-SG4
       A group of segments to identify a party and related contacts.

      NAD, Name and address
          A segment to identify a party's name, address and function.


      Segment group 4: CTA-COM
          A group of segments to identify a contact and its
          communications related to the party.

         CTA, Contact information
             A segment to identify a person or department within the
             party.

         COM, Communication contact
             A segment to identify a communication number of a person
             or department to whom communication should be directed.


   Segment group 5: EQD-LOC-DTM
       A group of segments to identify equipment related to the means
       of transport, and associated locations and dates and times.

      EQD, Equipment details
          A segment to identify equipment, such as railcars.

      LOC, Place/location identification
          A segment to specify the location of the equipment.

      DTM, Date/time/period
          A segment to specify a date and time related to the
          equipment.

   UNT, Message trailer
       A service segment ending a message, giving the total number of
       segments in the message and the control reference number of the
       message.

4.2   Data segment index (Alphabetical sequence by tag)

          BGM Beginning of message
          COM Communication contact
          CTA Contact information
          DTM Date/time/period
          EQD Equipment details
          LOC Place/location identification
          NAD Name and address
          QTY Quantity
          RFF Reference
          TDT Details of transport
          UNH Message header
          UNT Message trailer

Contents of MEQPOS