code: @Nullable
    public static VATINStructure getFromValidVATIN (@Nullable final String sVATIN)
    {
      if (StringHelper.getLength (sVATIN) > 2)
        for (final VATINStructure aStructure : s_aList)
          if (aStructure.isValid (sVATIN))
            return aStructure;
      return null;
    }
docs: Determine the structure for a given VATIN.
  
  @param sVATIN
  The VATIN to check
  @return <code>null</code> if no VATIN structure was found for the passed
  VATIN.