The proposed bill, known as the "Subsurface Pore Space Act," aims to clarify the ownership and conveyance rights associated with subsurface pore space in Michigan. It establishes that the ownership of pore space beneath surface lands and waters is vested in the owner of the overlying surface property, unless it has been severed from the surface estate. The bill outlines that a conveyance of surface property includes the pore space below it unless explicitly excluded. Additionally, it allows for the severance of pore space from the surface estate through conveyance, reservation, or lease, and specifies that any severed pore space can be sold, purchased, or leased independently.

Furthermore, the bill ensures that it does not limit or alter existing common law rights related to mineral estates, surface owners' rights to use nonsevered pore space, or the rights of mineral rights owners to access the surface for exploration and production. It also protects any previously acquired rights to pore space that were established before the bill's enactment. The act will only take effect if certain other bills from the 103rd Legislature are also enacted into law.