MODCHQ - SET UP AND MAINTENANCE Ó UNCTAD – SITE (V1.15) 10.1 MODCHQ - Set Up and Maintenance. Creating and updating the System Control Tables and References, System Testing and Statistical Data Extractions. Contents of Section 10. Amendment Control Grid .................................................................................................... 3 About this Section .............................................................................................................. 4 Customs Headquarters Functions ........................................................................................ 5 The Functional Menu of MODCHQ....................................................................................... 5 Connecting to the Server..................................................................................................... 5 Database Management  ...................................................................................................... 6 Customs Tariff ................................................................................................................... 6 Sections, Chapters and Headings  ........................................................................................ 6 National Notes................................................................................................................... 6 Keywords ......................................................................................................................... 7 Tariff Components.............................................................................................................. 7 Preferences ...................................................................................................................... 8 Statistical Units.................................................................................................................. 8 Market Value..................................................................................................................... 9 General Note................................................................................................................... 10 Quotas ........................................................................................................................... 11 Taxation ......................................................................................................................... 11 Rule ............................................................................................................................... 12 Lists............................................................................................................................... 14 Additional Tariff Columns .................................................................................................. 14 Commodity Code............................................................................................................. 15 Customs Procedure ......................................................................................................... 16 Customs Procedure Code Structure ................................................................................... 17 Model of Declaration ........................................................................................................ 17 General Customs Procedure ............................................................................................. 17 Previous Procedure.......................................................................................................... 18 Requested Procedure....................................................................................................... 19 Section 10