The main purpose of this legislation is to update the Federal Water Pollution Control Act to clarify that no permit is needed for the aerial application of certain fire control products. This change aims to facilitate firefighting efforts by ensuring that firefighters can use these products without the delay of obtaining a permit under the National Pollutant Discharge Elimination System. Key provisions of the law include a specific amendment that states that discharges resulting from the aerial application of approved fire control products do not require a permit.