A two-supplier policy protects a clinic from a stock-out without doubling inventory, if it is built around risk tiers rather than applied to every item. Put the critical single-use lines on two qualified suppliers, keep the routine lines on one, and write down the split so staff know which account to order from. Groups that split every SKU 50/50 usually end up with higher prices, more deliveries and no real resilience.
The policy is a purchasing document, not a clinical one. Start from the SKU list, mark the lines where a stock-out would stop care, and qualify a second source for those. A 24-hour self-contained biological indicator is a useful example of a critical line: a clinic can substitute a different glove more easily than it can skip a daily test.
Which SKUs belong in the critical tier?
Apply three tests. Would a stock-out stop a procedure within a week? Is the item single-source with a long lead time? Is there a regulatory or specification reason the item cannot be substituted quickly? Two yes answers put the SKU in the critical tier.
| Tier | Examples | Suppliers | Review |
|---|---|---|---|
| Critical | Biological indicators, sterilization pouches, exam gloves in high volume | Two qualified sources, 70/30 split | Quarterly price and availability check |
| Standard | Autoclave tape, underpads, waste bags | One primary, one approved alternate | Annual review |
| Commodity | Paper products, general wipes | One source with a substitution list | Annual review |
How should the 70/30 split work?
Give the primary supplier about 70% of the volume and the second source 30%, ordered every month rather than only in an emergency. A second supplier who never receives an order cannot be relied on when the primary fails, because the account is dormant and the lead time is unproven. The 30% does two things: it keeps the account live, and it gives you real delivery data before you need it.
For a small clinic, 70/30 may mean a quarterly order from the second source rather than a monthly one. That is acceptable if the order is scheduled. What is not acceptable is a second supplier whose only qualification is a price list.
What should be verified before a supplier is added?
- Specification match. Size, class, material and packaging must match the clinical requirement, not just the category.
- Documentation. A current specification sheet, lot coding and a certificate of analysis where applicable.
- Lead time. A quoted average and a quoted worst case; plan on the worst case.
- Regulatory evidence. For Canadian sites, the licence or registration reference for the product and the establishment, plus bilingual labelling.
- A trial order. One case through the full workflow before the SKU is listed as qualified.
How does the policy interact with storage?
Dual sourcing is not the same as dual stocking. Hold one buffer at the group level and keep site stock lean. If both suppliers ship to four sites independently, you have four small warehouses and a reconciliation problem. Centralise the buffer, keep the split at the purchasing level, and let sites draw from the buffer when a delivery slips.
Review the buffer against actual consumption once a quarter. A buffer sized on a busy month sits unused for the rest of the year; a buffer sized on a quiet month runs out in the first busy week. Use the average of the last three months and add the lead-time variance.
What breaks a two-supplier policy in practice?
Three things. First, staff order from the supplier whose portal is easier, which quietly turns the 70/30 split into 95/5. Second, the second supplier is qualified once and never re-checked, so its specification drifts. Third, the policy is written for the group but the sites keep their own purchasing cards. Fix all three with a single order sheet that names the approved supplier per SKU and a quarterly report that shows actual split by site.
Related reading
- US GPO vs Canadian provincial supply: how clinics buy sterilization consumables
- Managing biological indicator stock across multiple Canadian clinic locations
- Case review: a Moncton clinic cut glove use by sizing staff at the door
Download the printable sterilization log, or build one with the log generator. Ask a Compliance Specialist at our consultation desk. Ordering for a clinic, lab or care home? Wholesale and multi-site ordering covers account setup for institutional buyers. Start with a 24-hour biological indicator 25-pack before you qualify a second source for a critical line. Reselling? become a distributor.
Frequently Asked Questions
Should every SKU have two suppliers?
No. Dual sourcing every item raises prices and administrative load without adding resilience. Put critical lines on two sources and keep routine lines on one with an approved alternate.
What split should a two-supplier policy use?
About 70% to the primary and 30% to the second source, ordered on a schedule so the second account stays live and its lead time is proven.
What documents should a second supplier provide?
A specification sheet, lot coding, certificate of analysis where applicable, lead time with a worst case, and the Canadian licence or registration reference plus bilingual labelling for Canadian sites.
How much buffer stock should a group hold?
One buffer at group level, sized on the average of the last three months plus lead-time variance. Do not hold a separate buffer at every site.
CliniEco Medical is a licensed medical device establishment (MDEL #35334).
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