| Where: |
| Vq = value of qualifying timber; |
| Vh = value of harvested timber; |
| t = high impact of regulatory threshold (19.1% for Western Washington, 12.2% for Eastern Washington); |
| TV = total value of all timber covered under FPA = Vq + Vh; and |
| HIO - high impact override = (Vq/TV) - t; |
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