The difference between engineering changes and engineering visas
Thread Content
Sir, what is the difference between engineering changes and engineering visas? If there is a change, a visa is definitely required ； Must changes still be reflected in the construction drawings? Can visas no longer be shown in the construction drawings? Thank you!
The change is a document issued by the design unit, while the approval is an acknowledgment of the workload that does not have corresponding design documents.
Does a change necessarily result in a document being issued by the design institute?
Not necessarily; in the end, the construction contractor must issue its own visas based on the changes provided by the design institute. In cases where technical changes occur and lead to rework, the contractor will calculate the associated costs. Those of a general nature will not cause any changes. This mainly relates to cost issues; the change order and visa will serve as the basis going forward.
Regardless of whether the changes are proposed by the owner, due to omissions in the design, for optimization purposes, or to facilitate construction, any design changes made on site are documented by the design firm； On-site visa is the process by which the construction unit (general contractor) confirms on-site the workload that is not included in the design documents ； Generally, construction firms issue on-site visas for design changes that result in an increase in the volume of work or costs; otherwise, they do not issue visas. Experienced owners (contractors), upon receiving design changes, whether they involve an increase or a decrease in the volume of work, must issue on-site visas to specify the exact amount by which the work volume increases or decreases. Either increase or decrease.