172 Driver:
Brown is D airspace. IFR and VFR is not separated...
For those not familiar with U.S. rules, I would qualify Driver's statement by adding "...provided the Class D Surface Area is VFR which, for this purpose, is not less than a 1,000' ceiling and 3 miles visibility."
When the weather is less than 1,000 and/or 3 miles, VFR operations are limited to Special VFR, which requires a clearance and separation from IFR aircraft. And, in these circumstances IFR traffic has priority.