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PACIFIC NORTHWEST AREA FLIGHT CATEGORIES
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| FLIGHT CATEGORY RULES | ||||
| SYMBOL | CAT | CIG (ft agl) | Boolean | VIS (miles) |
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LIFR | <500 | and/or | <1 |
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IFR | 500 to <1000 | and/or | 1 to <3 |
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MVFR | 1000 to 3000 | and/or | 3 to 5 |
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VFR | >3000 | and | >5 |
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