The main purpose of this legislation is to allow taxpayers to deduct interest payments on loans taken out to purchase certain types of watercraft, similar to existing deductions for vehicles. This is aimed at providing financial relief to individuals who invest in recreational watercraft. Key provisions of the legislation include defining what qualifies as an "applicable watercraft." To be eligible for the deduction, the watercraft must be a recreational vessel that is powered by a motor and must be new to the taxpayer.