The practical answer
Identify the actual US FSVP importer and the intended use of the magnesium ingredient before shipment. Buying through a distributor or US warehouse does not by itself identify who performed the import obligations. Dietary-supplement components can fall under modified FSVP provisions, but eligibility depends on the parties' activities and compliance, not the ingredient name alone.
Put the responsible entities on one page
FDA defines the FSVP importer generally as the US owner or consignee at entry, with a specified US representative arrangement when there is no US owner or consignee. Determine that entity from the actual transaction. The commercial seller, customs service provider, warehouse and FSVP importer may have different roles. [1]
Create a responsibility map for the material you are purchasing. Include the foreign manufacturer, any intermediate supplier, the importer, receiving warehouse and finished-product manufacturer. Record legal entity names and the person responsible for the evidence at each handoff. This map is a practical purchasing tool, rather than a declaration that every party has the same regulatory obligations.
| Role to identify | Operational question | Record to connect |
|---|---|---|
| Foreign manufacturer | Who made this defined material at which site? | Supplier approval and manufacturing lot |
| Commercial supplier | Who owns the specification and customer communication? | Purchase agreement and change-notification contact |
| FSVP importer | Who determined and maintains the applicable FSVP pathway? | Documented responsibility and supporting records |
| Receiving or repacking site | How are lots, status and any split packs controlled? | Receipt, repack and distribution identifiers |
| Finished-product manufacturer | Who establishes and verifies component specifications? | Approved component specification and release decision |
On smaller screens, scroll the table horizontally.
Check whether modified supplement provisions actually apply
Under 21 CFR 1.511(a), an importer that meets the specified supplement-component specification and verification conditions has a modified set of FSVP obligations. Section 1.511(b) addresses qualifying arrangements involving the importer's customer and requires an annual written assurance of the customer's relevant compliance. These are conditional provisions, not a blanket exemption for anything called a supplement ingredient. [2] Section 1.511(c) applies to dietary supplements, not supplement components. [2]
FDA's FSVP guidance explains an important distribution-chain case: where neither the importer nor its direct customer conducts the relevant manufacturing or processing, the component does not qualify for the modified provisions in section 1.511 on that basis. The importer must assess the other applicable FSVP provisions. Have the responsible qualified individual document the pathway for the real arrangement. [3]
Keep intended use visible through the transaction
A magnesium ingredient destined for a conventional beverage and one destined for a dietary supplement may require different regulatory analysis. Record the application supplied to the importer instead of assuming the customer will classify the finished product later. If one order serves multiple applications, identify the separate uses and ask how they were assessed.
Make the receiving record usable after the goods leave the port. Preserve the original manufacturing lot when assigning an internal receipt number. For a split or repacked shipment, retain the link between original quantity, new package identifiers and destinations. These practical records support follow-up when a document correction or quality concern affects a particular lot.
- Before shipment, identify the responsible importer and verify that the required entry information is available.
- Confirm who maintains supplier-verification records and who responds to a documentation request.
- Where section 1.511(b) is used, track the written-assurance owner and annual renewal.
- Record how a changed manufacturer, intended use or distribution arrangement triggers review.
- Connect receiving quality status to the lot map so stock location is not confused with release approval.
Resolve responsibility before a delivery deadline
Discuss responsibilities while the commercial order is being prepared, not after a shipment is delayed. A useful purchasing file names the responsible entity, the reviewed pathway, the required documents and the escalation contact. It does not need to duplicate every confidential supplier record to show who is accountable for maintaining it.
When discussing US supply with MagneINNO, specify whether you are buying domestic stock or arranging an import, the intended product category and the receiving manufacturer's documentation needs. Confirm the actual arrangement for the order; warehouse location alone does not establish manufacturing origin or an import-compliance conclusion.
Common questions
Is the customs broker automatically our FSVP importer?
Do not assume so. Identify the FSVP importer under the applicable definition and transaction facts, and separately document the service provider's role.
Does a supplier COA replace FSVP?
No. A certificate supplies defined lot information. Determine the applicable importer obligations and required supplier-verification activities or modified pathway separately.
Does buying California stock remove every qualification task?
No. Domestic availability can change purchasing logistics, but the receiving manufacturer still needs an appropriate component qualification and release process. Ask how the offered lot and supporting records connect to the original source.
Sources & further reading
- FDA: FSVP final rule overview, scope and importer definition
- 21 CFR 1.511: FSVP provisions for dietary supplements and components
- FDA: FSVP Guidance for Industry, section K, especially questions K.5–K.11