The main purpose of this legislation is to extend the effectiveness of regulations designed to protect the North Atlantic right whale, a critically endangered species. By extending these regulations, the law aims to enhance conservation efforts and ensure the survival of this whale population. Key provisions of the legislation include changing the expiration date of certain protective regulations from 2028 to 2035. This extension allows for continued enforcement of measures that aim to reduce threats to the North Atlantic right whale, such as entanglements in fishing gear and ship strikes.