TOLEDO, Ohio (AP) - Ohio is taking its biggest step toward tackling the algae fouling Lake Erie.
A new law going into effect in 2017 will require most farmers to undergo training before they can use commercial fertilizers on their fields.
They'll also need to get certification from the state.
The goal of the new law is to decrease the amount of phosphorus-based fertilizer that runs off fields and feeds algae in Lake Erie.
But the new rules won't force farmers to use less fertilizer or require any inspections to make sure they're applying fertilizer correctly.
The Ohio Farm Bureau Federation and other agriculture industry groups favor the voluntary measures spelled out in the legislation.
But some environmental groups are questioning whether the rules will have much impact without stricter regulations.