Definition#
A Full Material Declaration (FMD) lists every substance present in a part, reported down to the homogeneous material level and ideally summing to 100% of the part's mass.
An FMD is the future-proof option. Because it captures everything, a new regulated substance can be checked against existing data instead of re-surveying suppliers. It is carried by formats like IPC-1752A.
Why it's valuable#
- Future-proof: when a new substance becomes regulated (for example a new SVHC), you can re-check existing FMD data instead of re-surveying suppliers.
- Reusable: one FMD answers many different regulatory questions (RoHS, REACH, and more).
A compliance or substance declaration is narrower. It only answers "does this comply with list X?" and must be re-requested whenever the list changes. Formats like IPC-1752A support both styles.
What an FMD looks like#
This illustrative product is broken down through its parts to each homogeneous material, with every substance listed and summing to 100%. Expand a part to explore it; the flagged substances are the ones a narrower declaration would chase.
A full material declaration breaks a product down through its parts to each homogeneous material, then lists every substance in that material — not only the hazardous ones. Expand a part to see its materials and composition.
| Substance | CAS | Share |
|---|---|---|
| Copper | 7440-50-8 | 60% |
| Zinc | 7440-66-6 | 37.5% |
| LeadSVHCOn the REACH Candidate List; this copper-alloy use is exempt under RoHS Annex III 6(c) up to 4 %. | 7439-92-1 | 2.5% |
| Sums to | 100% | |
| Substance | CAS | Share |
|---|---|---|
| Nickel | 7440-02-0 | 100% |
| Sums to | 100% | |
You will also see the term Full Material Disclosure for the same idea: the most complete declaration type, which IPC-1752A carries as its Class D. Disclosure and declaration here mean the same thing.