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Identifier	GroupID
Short name	GroupID
RegistrationStatus	Released 12 December 2019
Reference URL	http://dd.eionet.europa.eu/dataelements/latest/GroupID
Name	GroupID
Definition	ID of bathing water group.
Methodology for obtaining data	This is a required, not null field if bathing water is part of a group or if group of bathing water is reported. Do not report a value, if the bathing water is not part of a group. The identifier must: - Start with the ISO 3166-1 alpha-2 country code, except for Greece ('EL') and the United Kingdom ('UK'); - Be followed by the national code, with a maximum of 40 characters; - Use only uppercase letters [A to Z] and digits [0 to 9]. - The underscore character ('_') or the hyphen character ('-') may be used as separators within the code (but not to separate the country code from the national code, and not in the end of the code).
Datatype	string
Minimum size	3
Maximum size	42
Public or Internal	undefined
Responsible
Is language used	No
CheckInNo	3