modify the tax rate on gold severed in this state.

The provided bill text shows Senate Bill 7 amends South Dakota's severance tax on gold but does not specify the exact change to the tax rate (currently $4 per ounce or 1% of market value). Without the modified language or new rate details in the excerpt, the specific policy change cannot be described. This bill directly affects entities severing gold in South Dakota by altering their tax obligation. A complete summary requires the actual amendment text, which is not included in the provided context.