FDA 483 Citations for Holding, Distribution and Reserve Samples Under 21 CFR 111.453 and 111.83

23 hours ago

5 min read

Two Part 111 observations about what happens after a batch is made appeared often on system-generated Form FDA 483s in fiscal year 2025:

"You did not establish written procedures for holding and distributing operations," 111.453, 42 times
"You did not collect and hold reserve samples of packaged and labeled dietary supplements that you distributed," 111.83(a), 21 times

These citations reach brand owners and distributors as well as manufacturers. Any firm that holds or distributes dietary supplements is subject to the holding requirements, and reserve samples are what a firm needs to investigate a complaint or answer FDA questions about a lot months later.

What the citations mean

Examples written after "Specifically" usually describe:

No written procedures for warehouse storage or shipping
Products stored in hot or humid areas despite label storage statements
No temperature monitoring in warehouses or trailers
Products stored next to chemicals, or with damaged containers
No first-expired, first-out control, or expired product in saleable stock
No reserve samples, or samples kept for only some lots
Reserve samples too small to repeat the required tests, or stored in different containers

What Part 111 requires

Holding and distributing procedures (111.453). You must establish and follow written procedures for holding and distributing operations.

Holding conditions (111.455). You must hold components and dietary supplements under appropriate conditions of temperature, humidity and light so that their identity, purity, strength and composition are not affected, and under conditions that do not lead to mixup, contamination or deterioration.

Distribution (111.470). You must distribute dietary supplements under conditions that will protect them against contamination and deterioration.

Reserve samples (111.83). You must collect and hold reserve samples of each lot of packaged and labeled dietary supplements that you distribute. Reserve samples must be held using the same container-closure system in which the packaged and labeled dietary supplement is distributed, or one with essentially the same characteristics. They must be identified with the batch, lot or control number, retained for 1 year past the shelf life date, if shelf life dating is used, or for 2 years from the date of distribution of the last batch associated with the reserve sample, and consist of at least twice the quantity necessary for all tests or examinations to determine whether the dietary supplement meets product specifications. Under 111.465, reserve samples must be held under conditions consistent with product labels or, if no storage conditions are recommended on the label, under ordinary storage conditions.

How to respond to the 483

Part 111 does not set a deadline for responding, but most firms respond in writing within 15 business days of the close of the inspection, so FDA has the response before it decides on further action.

Assess product held under poor conditions

Where storage conditions may have affected product, review shelf life data, test reserve or retained samples and decide whether product in inventory or distribution is still within specifications.

Write holding and distribution procedures

Storage conditions by product, based on labels and stability data
Warehouse temperature and humidity monitoring with limits and alarms
Segregation from chemicals and of quarantined, rejected and released stock
Stock rotation and expiry control
Pest control and sanitation of storage areas
Shipping conditions and carrier requirements
Records of holding and distribution

Start a reserve sample program

Define the quantity per lot (at least twice what all specification tests require), the container, labeling, storage location and conditions, and the retention period. Collect samples from every lot of packaged and labeled product you distribute from now on. For lots already distributed with no samples, consider obtaining retail or customer samples where risk warrants it.

Train and verify

Train warehouse and quality staff. Audit storage conditions, stock rotation and reserve sample retention.

What a compliant holding and reserve sample program contains

Storage conditions and monitoring
Status segregation and identification
Stock rotation and expiry control
Distribution conditions
Reserve sample collection, quantity, container and storage
Retention periods under 111.83 and 111.605
Records

Common mistakes in holding and reserve sample responses

Writing storage rules without monitoring temperature
Keeping reserve samples in a different container than the marketed product
Collecting too little to repeat the tests
Keeping samples for some products but not others
Ignoring third-party warehouses and fulfillment centers

Example: how one response section might read

This illustrates structure only; your response must describe your own facts.

Observation 9: You did not collect and hold reserve samples of packaged and labeled dietary supplements that you distributed. Specifically, no reserve samples were held for 18 of 25 lots distributed in the last year.

Response:

Correction: A reserve sample procedure was issued on a stated date. Each lot now has samples in the marketed bottle, at least twice the quantity needed for all specification tests, stored in a monitored room at label conditions.
Lots without samples: Samples were obtained from remaining inventory for 11 of the 18 lots. For the other seven, the risk was assessed using batch records and test results.
Root cause: Reserve sampling was not part of the packaging batch record.
Corrective action: The batch production record now includes a reserve sample step verified by quality control before release.

Frequently asked questions

Do brand owners who do not manufacture need reserve samples?

The reserve sample requirement applies to persons who distribute packaged and labeled dietary supplements, which commonly includes brand owners. Confirm your responsibilities and agreements with your contract manufacturer.

How much should a reserve sample contain?

At least twice the quantity necessary for all tests or examinations to determine whether the supplement meets product specifications.

How long must reserve samples be kept?

One year past the shelf life date, if shelf life dating is used, or 2 years from the date of distribution of the last batch associated with the sample.

How A.P. Lyon documents help

A.P. Lyon's Dietary Supplement cGMP Quality System (21 CFR 111) includes holding, distribution and reserve sample procedures with storage monitoring and retention logs. The Supplement Brand Owner Compliance Pack covers holding, distribution and reserve samples for brand owners.

Documents are editable Word and Excel files and must be adapted to your products and facilities. Storage conditions must come from your own labels and stability data.

Next steps

Assess product held under poor conditions
Write holding and distribution procedures with monitoring
Start reserve sampling for every distributed lot
Respond in writing within 15 business days with dates for each action

To compare the complete system with the brand owner pack, see all dietary supplement documents.

Not sure where your quality system stands? Take the free QMS gap check: about 20 questions, an instant report of your gaps by clause, and the procedures that close each one.