Single Window Systems
In the OIC Member States
41
however used for system-to-system communication (GNSW, GCMS, commercial banks and
National Bank of Ghana – Treasury.
The GNSW system is fully integrated with the Ghana Customs Management System (GCMS) from
the Ghana Revenue Authority (GRA) and delivers the front office services for the submission of
the Customs Declaration for all Customs regimes, including re-export, re-import, temporary
importation (procedures with economic impact), export, transit, and specific exemptions from
duty and or tax payment.
Table 6: Ghana Single Window GCNet Services
Inventory of Business Processes / services
Request for Export and Import Authorizations, Licenses, Certificates and exemptions
Request for Customs Classification and Valuation Report (CCVR)
Submission and management of Cargo Manifest to Customs and other agencies including port authority
Electronic filing and submission of Custom Declaration and notification of release
Payment of Customs duties and taxes and fees for license and other processing fees
Application, issuance and termination of transit and warehouse bond
Creation and exchange of Delivery Order
Preparation of Road consignment document (CMR)
Notification of Vessel Arrival
Booking of transit truck assignment
Request movement goods from Port to ICD and other warehouse and confirm reception of goods
Source: Authors’ own compilation from OIC survey
GCNet ICT Architecture
The GCNet ICT Architecture is fully centralized and interconnection with the GCMS and the Port
System of the Tema Port Authority. Government agencies’ business processes are integrated
with end-to-end business processes integration.
The architecture three tiers based–web servers, application servers and common data storage.
For load balancing the high availability concept (clustering) and visualization is used. The GCNet
SW infrastructure consists of two mirrored sites with 98% availability of services. Data
warehouse and Business Intelligence is used for reporting and analysis services, covering both,
GCMS and GCMS.
2.4. Practice: Czech Republic Single Window
The Czech SW is a secure platform for the exchange of information and supports
interconnectivity and interoperability between the traders, customs and agencies. It is
integrated with the Czech Customs System and European Commission Directorate-General for
Taxation and Customs Union (DG TAXUD) IT Systems.