The bill proposes to officially designate the Karner blue butterfly (Plebejus melissa samuelis) as the state butterfly of Michigan. This designation aims to recognize the significance of the species within the state and promote awareness of its conservation.

The bill includes a provision stating that it will take effect 90 days after being enacted into law. This timeline allows for a smooth transition into the new designation, ensuring that the Karner blue butterfly is recognized as a symbol of Michigan's natural heritage.