Short answer: Ask each supplier for the same structured information for every component they provide: component name, material and material detail, weight per unit, recycled content, the SKUs or part numbers it applies to, and the date the specification took effect. Send a template, set a deadline, follow up on a fixed cadence and log every response. Supplier data is usually the slowest part of EPR work, so start it first.
Why supplier data is the bottleneck
Most brands do not make their own packaging. Bottles come from one converter, closures from another, cartons from a printer and cases from a corrugated plant. Contract manufacturers often buy some components on your behalf. Each of those companies holds part of the information EPR reporting needs, and none of them is obligated to drop everything to answer you. A clear request, sent to the right person, with a reason to respond, is the difference between a two-week turnaround and a three-month chase.
What to ask for
| Field | Why it matters | Common problem |
|---|---|---|
| Component name and supplier part number | Links the spec to your packaging configuration | Supplier part numbers do not match your item codes |
| Material and material detail | Determines program category (resin type, coating, laminate, colorant) | “Plastic” with no resin identified |
| Weight per unit, with unit of measure | Drives reportable quantity and fees | Weight per thousand or per case, not per unit |
| Recycled content percentage | Relevant to eco-modulation in some programs | Not tracked, or stated without documentation |
| Multi-material breakdown | A pump or laminate may span several categories | Only a total weight is provided |
| Effective date or revision | Lets you report what was actually supplied in each period | Current spec supplied for last year's data |
| Contact for follow-up | Speeds up corrections | Request lands in a shared inbox |
A request that gets answered
Keep the request short and specific. A useful structure:
- Context in one sentence. “We are compiling component-level packaging data for state packaging EPR reporting.”
- Exactly what you need. A pre-filled list of the components you buy from them, with the fields above as blank columns.
- The date you need it by. Give a real deadline tied to your reporting schedule.
- The format you accept. Their existing spec sheets are fine, as long as each component is identifiable.
- A named contact. One person on your side to answer questions.
Send it to someone who can actually answer: usually the supplier's quality, technical or customer service team, not only your sales rep. Copy your buyer, because suppliers respond faster to the person who places purchase orders.
Follow-up cadence
| Day | Action |
|---|---|
| 0 | Send the structured request with the pre-filled component list. |
| 5 | Short reminder; confirm the right contact received it. |
| 10 | Second reminder with the deadline restated; offer a 15-minute call. |
| 15 | Escalate through your buyer or the supplier's account manager. |
| 20+ | Decide on a fallback: measure samples, use a documented estimate, or flag in the issue log. |
When suppliers go quiet
- Measure it yourself. For high-volume components, weighing a sample of units on a calibrated scale is often faster than waiting. Record the method, sample size and date.
- Use a comparable component. If a similar part from another supplier is documented, use it as a temporary estimate and mark it as an assumption.
- Prioritize by impact. Chase the components that drive the most weight and the most fees first.
- Build it into contracts. Going forward, add a clause requiring packaging specifications, and updates when they change, as a condition of supply.
CertaRelay recommendation
Track every request in one place: supplier, components requested, date sent, follow-ups, date received and quality of the response. That tracker becomes evidence of a good-faith effort if questions come up later.
Contract manufacturers
Co-manufacturers often have the most accurate data because they run the lines, but they may buy components from their own suppliers. Ask them for a component list per SKU first, then decide whether they or the original suppliers should provide specifications. Using a co-manufacturer generally does not move the EPR obligation for your branded products, so the data responsibility stays with you.
How CertaRelay helps
Hands-on supplier outreach is included with Managed Packaging EPR Operations. We prepare the requests, contact suppliers and contract manufacturers, and follow up on your behalf until specifications arrive. When a supplier is slow, we use a measured sample or documented estimate so deadlines are not held up. Every response is checked for errors and logged with evidence. See also what packaging data brands need and common gaps in beauty and personal care.