California · Fish and Game Code - FGC

FGC §5901: Except as otherwise provided in this code, it is unlawful to construct or maintain in any stream in Districts 1, 1 3 8 , 1 1 2 , 2, 2 1 4 , 2 1 2 , 3, 3 1 2 , 4, 4 1 8 , 4 1 2 , 4 3 4 , 11, 12, 13, 23

Civil

What this law says, in plain English

It is unlawful to construct or maintain devices in specified stream districts that block or obstruct fish passage up and down stream, except as otherwise provided in law.

Read the full statutory text
Except as otherwise provided in this code, it is unlawful to construct or maintain in any stream in Districts 1, 1 3 8 , 1 1 2 , 2, 2 1 4 , 2 1 2 , 3, 3 1 2 , 4, 4 1 8 , 4 1 2 , 4 3 4 , 11, 12, 13, 23, and 25, any device or contrivance that prevents, impedes, or tends to prevent or impede, the passing of fish up and down stream.

Verify at the official source: California legislative text

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