# DPP access rights: who can see what?

> Public, legitimate interest and authority access — with a worked permission matrix.

## Key takeaways

- Access is tied to specific fields and purposes, not a simple public/private switch.

- Batteries define three audiences: public, legitimate interest, authorities.

- Internal admin and supplier roles are operational, not legal tiers.

## Battery passport audiences

- General public — identity, chemistry, carbon footprint, recycled content, capacity, lifetime, warranty

- Persons with legitimate interest — repairers, remanufacturers, second-life operators and recyclers: detailed composition, dismantling, state of health

- Notified bodies, market surveillance authorities and the Commission — test reports and compliance evidence

## Example permission matrix

| Field | Public | Repairer | Recycler | Authority |

| --- | --- | --- | --- | --- |

| Model & manufacturer | Read | Read | Read | Read |

| Carbon footprint | Read | Read | Read | Read |

| Detailed composition | — | Read | Read | Read |

| Dismantling instructions | — | Read | Read | Read |

| State of health | — | Read | Read | Read |

| Test reports | — | — | — | Read |

## Design tip

Model each permission as field × audience × read/write × purpose × proof of entitlement. Verifiable credentials and identity wallets are emerging as a way to prove a repairer or recycler is entitled to restricted data.

## Sources

- [Regulation (EU) 2023/1542 Art. 77](https://eur-lex.europa.eu/eli/reg/2023/1542/oj/eng)