9.4 Repackagers/Relabelers & Third-Party Logistics (3PLs)

Two entities round out the supply-chain picture the exam wants you to master: repackagers/relabelers and Third-Party Logistics providers (3PLs). They sound similar — both touch product they did not make — but their roles and their DSCSA treatment differ in ways the exam tests directly.

Repackagers and Relabelers

A repackager changes the packaging configuration of a drug. A relabeler changes or applies new labeling. In practice the two functions are often performed by the same firm, and the exam treats them as a single category. Typical operations include:

• Bulk to unit-of-use — repackaging a bulk manufacturer bottle into unit-of-use or unit-dose packages for hospital or pharmacy use.
• Bottle-to-bottle — repackaging into a different count (e.g., 30-count from a 500-count bulk).
• Blister packaging — creating blister cards for long-term care or outpatient adherence packaging.
• Relabeling — applying a new label, such as a private-label or distributor-brand label, to the same product.

Regulatory Status

• FDA-registered — a repackager must register with FDA, just as a manufacturer must.
• Own NDC — the repackager assigns its own National Drug Code to the new configuration. The repackaged product is, for identification purposes, a product from the repackager.
• cGMP — repackaging is a manufacturing-like operation and is subject to cGMP requirements.

DSCSA Obligations

Under DSCSA, a repackager is an authorized trading partner for covered prescription product and must:

• Serialize the new package with a product identifier (the repackager's NDC, a serial number, lot, and expiration date) in human-readable and 2D Data Matrix form.
• Pass transaction data — transaction information and transaction statement to the next trading partner (transaction history has not been required since its November 27, 2023 statutory sunset).
• Conduct suspect-product investigation and quarantine and notify for illegitimate product, like every other trading partner.
• Retain records for the DSCSA six-year period.

Because the repackager applies its own NDC and a new product identifier, the downstream T3 chain for the repackaged configuration effectively starts at the repackager. A pharmacy receiving a unit-of-use package from a repackager should expect transaction information and a transaction statement naming the repackager as the seller; under EDDS the repackager's product identifier links the new package back to the original manufacturer's product.

A common exam point: repackagers are not exempt from DSCSA just because they did not make the drug. Repackaging is a regulated step in the chain, and the repackager carries the same serialization, T3, and suspect-product obligations as a manufacturer or wholesaler.

Third-Party Logistics Providers (3PLs)

A Third-Party Logistics provider (3PL) provides logistics services — warehousing, transportation, picking, packing, shipping, and sometimes returns processing — on behalf of a manufacturer, wholesaler, or other trading partner. A 3PL is a service provider, not a seller of the drug.

The Title-vs-Service Distinction

This is the single most important distinction on the exam for 3PLs:

• A wholesale distributor takes title to (owns) the product and sells it. The wholesaler's invoice is the sale; the wholesaler earns on the spread and on services.
• A 3PL does not typically take title to the product. The 3PL handles and moves the product on behalf of the owner. The 3PL's invoice is for services (storage, handling, freight); the 3PL earns fees, not a sale spread.

The distinction is not academic. It determines who is the trading partner of record and who must pass T3. If a manufacturer stores product in a 3PL warehouse and the manufacturer sells the product to a wholesaler, the manufacturer is the trading partner that passes T3 to the wholesaler; the 3PL is the logistics arm that physically ships the product. The 3PL's role is reflected in transaction information (it may appear as the facility that shipped the product), but the sale and the T3 obligation sit with the manufacturer.

State Licensure of 3PLs

State licensure of 3PLs varies by state. Some states license 3PLs as a distinct category; some regulate them under wholesale distributor rules; some do not have a specific 3PL license at all. This patchwork is exactly why the exam expects you to know that 3PL licensure is state-by-state and not uniform.

DSCSA and the 3PL Definition

Under DSCSA, the statute and FDA's implementation address 3PLs in a specific way:

• DSCSA defines a third-party logistics provider as an entity that provides or coordinates warehousing or other logistics services for a product in interstate commerce on behalf of a manufacturer, wholesale distributor, or dispenser, but does not take ownership of the product and has no responsibility to direct its sale or disposition.
• A 3PL's own DSCSA duties are licensure (state or federal 3PL license) and annual facility reporting to FDA (21 U.S.C. 360eee-3(b)); any help it gives with verification or recordkeeping is contractual support for the owner's section 582 obligations.
• A 3PL is a DSCSA trading partner (section 581(23)(B)) — but through direct possession rather than direct ownership. That is why a 3PL is not the trading partner of record for a sale (it never owns the product) yet must still be authorized, meaning it holds a valid 3PL license under State law or the federal licensure provision. Trading-partner status is not the same as being on the hook for tracing, though: FDA's own guidance confirms that 3PLs are not subject to section 582's product-tracing requirements — that duty runs to manufacturers, repackagers, wholesale distributors, and dispensers, the four categories that actually take title to the product.

The exam-able rule of thumb: a 3PL that takes title is functioning as a wholesaler and carries wholesaler obligations; a 3PL that does not take title is a logistics service provider and supports (but does not replace) the trading partner's DSCSA duties.

Comparison Table — Wholesaler vs 3PL

How All Four Entities Fit Together

Putting Sections 9.1 through 9.4 together, the supply chain from product to dispenser can include:

1. Manufacturer (or virtual manufacturer + contract manufacturer) — creates the drug, serializes it, passes T3.
2. Repackager (if the configuration changes) — repackages, applies its own NDC and new product identifier, passes T3.
3. Wholesaler (primary, specialty, or secondary; or a virtual wholesaler) — takes title, aggregates, sells to the dispenser, passes T3.
4. 3PL — at any of these steps, a 3PL may warehouse or transport the product on behalf of the owner without taking title.
5. Pharmacy / hospital (dispenser) — receives the product with T3 data (TI and TS), verifies product identifiers when a product is suspect or a verification request comes in, and dispenses to the patient.

At every step where title changes hands, T3 follows. Where a 3PL only handles the product, the trading partner of record remains the owner, and the 3PL supports the flow. This is the framework that ties every entity in this chapter back to DSCSA and to the patient-safety goal the law serves.