Is project handover required before the trial production of an engineering project?

Generally, before trial production, the project handover procedures must be completed with the client, who will then organize the trial production.

It needs to be transferred first, followed by trial production; once the owner uses it, it means he has accepted this device

According to regulations, trial production can only begin after the completion inspection is passed

Intermediate handover procedures should be carried out, as well as special inspections related to fire safety, and the final completion inspection can only be conducted after trial production is successful

This view is incorrect; after the project is completed, an intermediate handover must be carried out, followed by trial production organized by the production unit. Only after achieving full production capacity and passing performance tests can the final acceptance be conducted.

The division of responsibilities is also different. There is no handover; the responsible party remains the EPC contractor. After the handover, the responsible party becomes the production unit.

It depends on the contract; there’s no fixed rule stating what must be done. In the few EPC/EPCC projects I have been involved in, once the mechanical work was completed – that is, when the pumps were properly aligned, the pipelines had undergone hydraulic testing, and the instruments had been calibrated – the project was handed over to the owner for commissioning. The construction subcontractors left completely, and this is what true EPC entails, as opposed to EPCC ； There are also cases where a temporary acceptance certificate is issued upon completion of the performance assessment to facilitate the handover, and this is relatively common. For the project currently under progress, the MC certificate is issued once the mechanical work is completed, after which the EPC general contractor guides and supervises the owner in carrying out the trial operation and commissioning of the facility. The end of the performance assessment is a temporary acceptance. If a standard must be established, it is recommended to refer to FIDIC (the Silver Book); there are regulations outlined in it. I saw it once before, but it seemed strange to me and I’ve forgotten what the details were. But ultimately, FIDIC is also a contract template, and not a standard in itself. Indeed, as mentioned above, the main issue is one of operational responsibility; for the EPC general contractor, it primarily relates to the deadline for the project insurance. The discussion upstairs focused on completion and finishing. By finishing, we mean the completion of the project in terms of construction; according to the contract we are currently using, this refers to the achievement of all performance criteria for the project, with all remaining items approved by the owner also being settled ； Mechanical completion, on the other hand, refers to the finish of installation work, as well as the completion of checks to ensure its correctness (hydrostatic testing, instrument calibration, and alignment of moving equipment). There is a term used in China called \"Zhongjiao\", which essentially refers to the concept of mechanical completion within EPCC. However, it involves more transfer of responsibilities compared to typical EPCC projects (or those I have experienced), as the responsibility for operating the equipment is also transferred over. What is the concept of project handover? How to define project handover? Abroad, there is a term called TCCC, which stands for Transfer of Control, Care & Custody. However, this applies only to transfers between internal departments within a project; for example, after construction is completed, TCCC takes place from the construction team to the QAQC department, and after the MC process is finished, TCCC occurs again, this time from QAQC to the commissioning department. How can one determine who is responsible for operating a device? In my opinion, there are two indicators: 1. If an accident occurs and property damage results, whose insurance company will cover the losses? 2. Who goes to whom to obtain a work permit? Haha, I talked so much. The key is to look at the contract; there’s nothing else to refer to. Because the concepts mentioned in the question are very flexible, or rather, quite vague.