Supplement rules
What cGMP and 21 CFR Part 111 Ask of a Supplement 3PL
Updated October 2026
Most of 21 CFR Part 111 is written for the companies that make supplements. A warehouse that stores and ships them works under a smaller part of the rule, on holding and distribution, and should be able to show you its records for each step.
The parts of 21 CFR Part 111 that reach a supplement warehouse cover:
- receiving
- storage and holding
- distribution
- recordkeeping
The sections on manufacturing don't apply to a warehouse, and meeting the rule is the job of the brand on the label. Our part is the warehouse work: logging each lot and expiry date at the dock and scanning every pick against the order, all recorded in BestOMS, our order system. Ask us to walk you through the procedures and records behind it, next to your own Part 111 obligations.
By The Fulfillment.com team
Where the rule reaches a warehouse
What 21 CFR Part 111 asks of a fulfillment partner
21 CFR Part 111 is the current Good Manufacturing Practice (cGMP) rule for dietary supplements. Most of it is written for manufacturers and covers making the formula, checking each batch as it is made, and testing the finished product. A 3PL that handles finished goods does none of that. It receives sealed, labeled product and ships it out.
The rule also covers how supplements are held and distributed, and any facility that warehouses them works under those sections every day. That is the part to check a partner on. Ask a warehouse whether it is cGMP, and a useful answer names the Part 111 steps it runs on its floor and points to the records behind them. In everyday nutraceutical fulfillment, those steps are sealed bottles received, shelved and shipped, with a record kept at each one.
Five practices to ask about
The holding and shipping practices to ask a warehouse about
Each of these is daily warehouse work, which means each one is something you can ask a partner to show you.
- Controlled receiving. At the dock, inbound product is inspected and recorded by its lot number and expiration date as well as its SKU. Everything after receiving depends on that record. Our guide to lot tracking and expiration control explains how it is done.
- Defined storage conditions. Each SKU's label sets its storage condition, and that requirement belongs to the brand. Probiotics, gummies, fish oil and botanicals are temperature-sensitive and can need a set temperature and humidity range rather than ordinary racks. Check each label against what a partner's buildings can actually hold. Ours are dry and ambient with no held range, so for a product whose label calls for one, we are not the right fit. Storage conditions for gummies, probiotics, and softgels goes through it product by product.
- Sanitation and housekeeping. Part 111 asks a warehouse to keep its storage areas clean and free of pests, following written cleaning procedures. The warehouse didn't make the product, and its job is to keep it in the condition it arrived in. Any partner should be able to hand you those procedures and its recent pest-control records.
- Controlled distribution. The system tells the picker which lot to take, and a barcode scan checks it before it ships. Stock goes out FEFO (first-expired, first-out) or FIFO (first-in, first-out), whichever the product needs, and the expiry date is checked either way. We compare the two in FEFO vs FIFO for supplements.
- Recordkeeping. Every step above leaves a record. It shows what arrived, in which lot and in what condition. It also shows where the product was held and which orders each lot shipped on. A warehouse turns to those records in an audit or a recall, and our guide to lot tracking and expiration control shows how they are kept.
On our floor, the receiving team logs each lot and pickers take the lot the system assigns. Each pick is scanned against the order before it leaves the building, and every step is logged in BestOMS. Ask us for the written procedures behind these steps.
Practice and certificates
Running the practices is different from holding a certificate
What we claim is that we run the Part 111 holding and shipping steps and can show the written procedures (SOPs) and records behind them, with no outside auditor involved. That is a weaker claim than "cGMP-certified", which rests on a certificate from an outside auditor, and a different one from FDA food-facility registration, which is a filing rather than a quality claim. Our guide to what an FDA-registered fulfillment facility means for a supplement brand compares registration with certification and explains how to check each one.
On the warehouse floor
Where these practices show up in your orders
Each practice is there to stop a mistake that a brand would otherwise pay for in returns, chargebacks or marketplace penalties.
- Capturing lot and expiry at receiving shows a near-dated lot before anyone picks from it.
- Comparing each label's storage condition with the building is a check the brand makes. It keeps a product that needs a set temperature out of a building that can't keep one.
- The barcode check is there to catch the same bottle in a different dose.
- Lot records list the orders each lot went out on, and a recall needs exactly that list.
Questions supplement brands ask about cGMP and Part 111
Are you cGMP-compliant for supplement fulfillment?
21 CFR Part 111 is the cGMP rule for dietary supplements. The brand whose name is on the label is responsible for meeting it, even while another company stores and ships the product. The part of the rule that reaches a fulfillment partner covers holding and distribution: receiving with lot and expiry dates recorded, storage conditions set for each product, picking directed by the warehouse system, scan-checked shipping, and records that tie those steps together. Our side of that is ordinary warehouse work. We record lots and dates as stock arrives, and the system chooses which lot ships. We scan each pick against the order and keep a record of the orders each lot went out on. Describing that work is not a claim that we comply with the rule. We can show you our written procedures and records, so you can check them against what Part 111 asks of you. A third-party cGMP certificate is a different thing. If a warehouse has one, it can tell you who issued it and when.
Does 21 CFR Part 111 apply to a 3PL that only stores and ships supplements?
Yes, in part. Most of Part 111 is about manufacturing, which a 3PL that handles finished goods doesn't do. The sections on holding and distribution, though, apply to any facility that warehouses dietary supplements. A warehouse that never mixes, fills or tests product is still expected to check what it receives, set storage conditions and keep the building clean. It is also expected to control what it ships and keep records.
Which 21 CFR Part 111 practices does a fulfillment 3PL actually run?
The ones about holding and shipping product, and there are five. Lots and expiry dates are recorded as product arrives. Each SKU is stored in the conditions its label calls for. Cleaning and pest control follow written procedures. Each pick is chosen by the system and checked by barcode, with stock rotated by expiry date or arrival date as the product needs. Records connect every one of those steps. A 3PL doesn't do the manufacturing work, so these five are what a brand can ask a partner to show.
How does cGMP fulfillment protect my product on the floor?
By dealing with a problem at the step where it starts. Logging expiry dates at receiving shows near-dated stock before anyone picks it. The barcode scan at packing is the check for a look-alike bottle, and lot records let a recall stay limited to the one lot affected. Storage is a check the brand makes first: compare each label with what a partner's buildings can keep before you send it a product that needs a set temperature. Our receiving log, system-chosen rotation, barcode check and lot records all live in BestOMS, our order system, which sits on top of the Deposco warehouse system.
Is a fulfillment 3PL a manufacturer under 21 CFR Part 111?
No. A warehouse that only stores product doesn't mix, bottle or fill anything. It takes in sealed, labeled supplements and ships them, so the manufacturing sections of Part 111 don't describe its work. It works under the sections on holding and distribution instead, from receiving through to recordkeeping. Each of those steps leaves a record, and a brand can ask to see it.
See how we would handle your lots
The quote is free and commits you to nothing. Send us your supplement SKUs, your volume and where you sell, and our team will walk you through how we'd receive, store, pick and record your lots, set against your own 21 CFR Part 111 obligations.