> For the complete documentation index, see [llms.txt](https://tunakings-organization.gitbook.io/tuna-rwa-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tunakings-organization.gitbook.io/tuna-rwa-docs/core-architecture/quota-management.md).

# Quota Management

Bridging biology to blockchain requires a repeatable workflow—from quota transfer to automatic token burn—that regulators can audit and token-holders can trust. The pipeline below shows how every tonne of quota and every dollar of revenue hits the ledger.

| Step                   | Action                                                         | On-Chain Touchpoint       | Responsible Party  |
| ---------------------- | -------------------------------------------------------------- | ------------------------- | ------------------ |
| **1. Transfer**        | Stehr Group transfers ITQ to the SPV; AFMA records the change. | –                         | Stehr Group & AFMA |
| **2. Mint**            | SPV mints TUNA in a 1-time event pegged to kg.                 | `QuotaRegistry.mint()`    | SPV trustee        |
| **3. Real-Time Debit** | E-log & VMS packets are hashed and pushed to ESG Oracle.       | `ESGOracle.update()`      | Vessel fleet       |
| **4. Cash Inflow**     | Lease rent / fish-sale proceeds reach SPV bank.                | `DividendVault.deposit()` | Stehr Group        |
| **5. Auto Buy-Back**   | Bot executes market buys and burns TUNA.                       | `BuyBackBot.execute()`    | Tuna Foundation    |