Customs Handling of Import & Export Freight

1. Trader pre-declares data to CHIEF
2. Goods physically arrive at the port
3. Inventory system informs CHIEF of the goods' arrival
4. CHIEF re-processes the stored declaration, now aware that the goods are at the port. It will grant 'permission to progress', at which point the goods may be loaded onto the craft.
5. The craft departs and the inventory system informs CHIEF
6. CSP informs the trader that the goods 'departed UK'

1. Trader or port system creates consignment on CSP inventory system
2. Trader pre-declares data to CHIEF, stating that it represents goods on the above consignment
3. CHIEF confirms with inventory system that the consignment exists
4. Goods physically arrive at the port
5. Inventory system informs CHIEF of the goods' arrival
6. CHIEF re-processes the stored declaration, now aware that the goods are at the port. Declaration is awarded a 'route to clearance', which for trusted traders may mean automatic clearance, or may require a documentary or physical examination
7. Goods are cleared automatically by CHIEF or by customs officers
8. CHIEF informs inventory system of clearance
9. CSP releases the cleared goods to the trader once all local port and commercial requirements are met

In both import and export scenarios, unsolicited "reports" (data designed to be rendered by the recipient computer into a human-readable format to report upon changes) are sent when a change occurs on the declaration record, such as when the record is reprocessed upon goods' arrival or when the goods depart the UK. Reports are also used to communicate customs officers' enquires or requests to the trader. Traditionally the reports are automatically printed onto paper at the trader's office, although this is slowly being replaced by entirely electronic storage.

Service providers are companies that have a special relationship with CHIEF and who run inventory management systems at ports. Movement of good through these ports is managed by the CSPs (customs/community service providers, who provide access to CHIEF for the traders and who liaise with CHIEF regarding the physical movements of the goods. Such CSPs are:

• MCP - Maritime Cargo Processing (present at, among other ports, Felixstowe)
• CNS - Community Network Services (present at, among other ports, Harwich)
• CCS-UK - Cargo Community System (for airport movements) run by BT Group
• Pentant - (present at, among other ports, Dover), run by Descartes Systems Group
• DHL - the major integrated forwarder

These CSPs have dedicated connections to CHIEF.

Traders' declarations are usually submitted using the EDIFACT format defined by HMRC, sent to the CSP who will usually check its data against their inventory before forwarding the data to CHIEF. Responses from CHIEF are sent back to the trader, either as part of the transaction in which the upload occurred or as an unsolicited message.

For certain types of customs declarations, traders may access CHIEF without going through a CSP. This is achieved over the Internet using email, an XML web service or a website. The endpoint for the trade is a front door to all UK government services, the Government Gateway, who then use the GSI (Government Secure Intranet) to reach CHIEF (and indeed any other government computer systems).

The Human-Computer Interface is a telnet-like application that allows green-screen access into CHIEF. Declarations may be completed by typing data directly into CHIEF. The CSPs provide the physical means to use this method, usually both the terminal software and the transport mechanism.

Customs officers, who have ultimate control of customs activities, need a means to perform their business operations. They access CHIEF using terminals.

In May 2010, HMRC formally announced its plans to retire (what has become known in the industry as) "Classic" CHIEF in summer 2012, replacing it with CHIEF STE (strategic technical enhancement). The objectives of this are to meet HMRC's obligations to have a service-oriented architecture for its applications, to incorporate TARIC 3 specifications and to allow for easier enhancements and changes. CHIEF STE will be a ground-up rewrite of the application baselined at Summer 2009 plus all formal changes (including ECS). Major changes include the dropping of EDIFACT in favour of XML (although a grace period will be allowed), compliance with TARIC 3, and the dropping of the HCI in favour of HTML web pages.

According to the HMRC website:[2]

Within the term of the current contract with Capgemini to run the CHIEF (Customs Handling of Import & Export Freight) service from 2010 to 2015, is a requirement for CHIEF to be replatformed to replace the outdated COBOL and VME-based existing system, with a Service Oriented Architecture (SOA) design, which will allow integration with other CSTP and other HMRC business processes. The solution will also take advantage of COTS packages, where appropriate. Once delivered, CHIEF STE will provide a more agile solution, making future business changes easier to accommodate, whilst retaining existing response times and availability.

— CHIEF Strategic Technical Enhancement (STE), HMRC website archived at The National Archives

In January 2012, when asked how the department is progressing with the delivery of CHIEF STE, HMRC [3] stated that "HMRC continues to work with Capgemini to establish a way forward, gather requirements and re-plan the delivery. However, delivery will not now take place in 2012."

In March 2012, HMRC stated [4] "it was likely that the CHIEF rewrite project (Strategic Technical Enhancement - STE) would now be put out to tender under a new contract following negotiations with Cap Gemini. HMRC and Cap were close to agreement on closing the current STE project. The changes to the Cap Gemini contract with HMRC would not affect the running of the existing CHIEF Service".

In November 2012, [5] HMRC intimated that there was likely to be an announcement later in December 2012, but had no further updates for the meeting.

The minutes of the JCCC Customs Change Sub Group Meeting in June 2013 state:[6]

Guy Westhead introduced himself to the CCG. Guy has been appointed as the new Programme Director for the CHIEF replacement project taking over the role from Stella Jarvis. Whilst Capgemini continue to deliver the live CHIEF Service, work on the CHIEF STE project has concluded. HMRC expect to be retendering for a replacement service soon, and this could be as early as the end of this year. Any retender will be by Lean Open Procurement, following advice from the Cabinet Office, who will set strict rules on information sharing and timelines to be adhered to. The decision to progress issues whilst discussions are still ongoing has been made. The CHIEF 2 team now has 12 members of staff within Business Transformation and a growing support from IMS colleagues. Whilst development depends on future funding, the department will be making an announcement in July regarding future trade events to be held either in September, or October, this year.

— Minutes of the Customs Change Sub Group Meeting, HMRC

In around 2015, HMRC announced a new successor project to CHIEF. The project to replace CHIEF, after the demise of the CHIEF STE project, underwent various names, including "CHIEF 2" and "CHIEF Replacement Program". Ultimately a decision was made by HMRC to remove the name CHIEF from its successor, to reflect that it would be a new ground-up project. Customs Declaration Services was conceived as being a new service hosted on the central Multi-Digital Tax Platform, and accessed via the Government Gateway (or the successor thereto). In 2016 HMRC selected vendor IBM to provide off-the-shelf software that would be customised to meet the UK's needs. The contract to acquire this software was due to be signed the day after the EU Exit referendum on the anticipation of a remain vote; the signing was delayed until approximately September because of the relatively unexpected leave vote to allow HMRC to check that the IBM product would still be suitable. CDS will comprise the core IBM product, also used in the Netherlands, highly adapted to allow the continued use of some of the same concepts used under CHIEF. The release of CDS is phased, with the first stage going live in August 2018 for a limited number of traders and a very niche set of business scenarios. Refer to . A second phase, adding full import functionality, was expected in late 2019 but was delayed due to the need to prepare CHIEF to handle the increase in Customs declarations die to Brexit. A third phase, with export functional, is not expected to occur before late 2021. A complex solution to allow the dual-running of CHIEF and CDS for exports was developed, refer to