A bill to amend the Fish and Wildlife Act of 1956 to authorize restrictions and prohibitions on the use of insecticides, herbicides, fungicides, and pesticides which pollute the navigable waters of the United States.

Provides that, notwithstanding the Federal Water Pollution Control Act or any other provision of law, whenever the Secretary of the Interior determines, after consultation with the Administrator of the Environmental Protection Agency, that the use of any insecticide, herbicide, fungicide, or pesticide results in the pollution of any of the navigable waters of the United States so as to constitute a substantial threat to man or to fish and wildlife resources living in or using such water, he is authorized to restrict or prohibit the use of such insecticide, herbicide, fungicide, or pesticide so as to prevent such pollution. States that such restrictions or probititions shall be for such periods and under such terms and conditions as the Secretary shall by regulation prescribe.