

When importing Class A and B medical devices, many businesses are often confused about when to submit new Medical Device registration documents and when to supplement information. In many cases, misunderstanding regulations leads to delays in shipments, increased costs, and disruptions to business progress. This article will help you clearly distinguish between these two important cases according to current regulations, thereby proactively controlling risks during the import process.
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ToggleIn practice, the boundary between when a new dossier must be submitted and when it is sufficient to simply provide additional information is not always clear. Many businesses assume that all changes can be handled by updating existing information, while in fact, some changes alter the legal nature of the product.
This confusion can result in the declaration dossier no longer being consistent with the actual goods. When authorities conduct inspections, businesses only then realize the mistake, but by that point, it has already led to significant consequences in terms of time and cost.
To avoid confusion, businesses need to understand a key principle: If a change affects the nature, function, or primary identity of a product, a new declaration dossier must be submitted. Conversely, if the change is merely administrative or does not alter the intended use, the business may proceed with a supplementary update.
In particular, under Decree 98/2021/ND-CP on the management of medical devices (Clauses 3 and 4 – Article 28), businesses must clearly distinguish each type of change in order to choose the appropriate handling method. Proper application of these regulations not only ensures the validity of the dossier but also helps avoid risks during the import process.
When a product undergoes fundamental changes, businesses can no longer rely on the existing declaration dossier. In such cases, submitting a new dossier is a mandatory requirement to ensure legal compliance.

Specifically, a new declaration must be made when there is a change in the owner of the medical device. This is a critical legal factor directly tied to the responsibility for managing the product in the market.
In addition, if the classification of the medical device or its intended use changes, the existing dossier will no longer accurately reflect the nature of the product. In such situations, submitting a new dossier allows regulatory authorities to reassess the product’s safety and suitability.
Furthermore, changes related to product identification—such as model variations, the addition of manufacturing facilities, or the inclusion of new product codes—also require a new declaration. These are key identifying elements that directly impact product management and traceability.
Not all changes are complex enough to require submitting a new dossier. For adjustments that do not alter the nature of the product, businesses may simply provide a supplementary notification to update the information.

For example, when a business changes the address or name of the product owner, this is considered an administrative change. The declaration dossier remains legally valid if it is updated in accordance with the proper procedures.
Similarly, changes in packaging specifications or warranty facilities do not affect the product’s function, so only supplementary updates are needed. Regarding product labels and instructions for use, businesses are allowed to make adjustments as long as the original intended use remains unchanged.
In addition, reducing the number of manufacturing facilities, models, or product codes can also be handled through notification. However, businesses must ensure that all updates are made fully and within the required timeframe.
Even when a new submission is not required, supplementing a dossier must still be carried out carefully and properly. Many businesses underestimate this process, assuming that internal changes do not need to be reported, which can lead to inconsistencies in information.
According to regulations, when changes occur, businesses must prepare a written notification, compile relevant documents, and update the information on the management system within the prescribed timeframe. Delays may result in the dossier no longer being considered valid during inspections by authorities.
More importantly, businesses should thoroughly check the consistency between the dossier and product labeling before each import shipment. This is a simple step that can help prevent significant risks.
Distinguishing correctly when a new submission is required and when a supplementary update is sufficient not only helps businesses comply with regulations but also ensures continuous import operations.
Instead of dealing with problems after they arise, businesses should proactively review their dossiers periodically and update it immediately when changes occur. This not only saves costs but also maintains credibility with partners and customers.
Determining when to submit a new dossier and when to provide a supplementary update for medical device declarations is a key factor in helping businesses avoid risks during importation. If you are facing difficulties in classifying and handling declaration dossiers for Class A and B medical devices, please contact Green NRJ for detailed consultation and timely support.