Speed Limit Below 10,000 Feet MSL
There is an indicated airspeed limitation of 250 knots or 288 mph when operating below 10,000 feet MSL.
Speed Limit Near Class C or Class D Primary Airports
When within 4 nm of the primary airport of a Class C or D airspace area and at or below 2,500 feet AGL, a 200 knot or 230 mph indicated airspeed limitation is imposed.
Speed Limit Underneath Class B Airspace
A 200 knot or 230 mph indicated airspeed limit exists anytime you are flying below Class B airspace.
VFR Corridor Speed Limit
If flying along a VFR corridor through a Class B airspace area, the indicated airspeed limit is 200 knots or 233 mph.
ยง 91.117 Aircraft speed.