It varies by state. You would need to check your state's laws (or the laws of whichever state you're referring to) for an answer to this question.
65 In Texas is 70 mph
65 In Texas is 70 mph
speed limit was 70 speed limit was 70
what is the maximum speed limit in florida
70
Click the link.
45 miles
120 Km/h
55 mph
80 MPH during daylight hours, 65 MPH at night.
The maximum speed limit for police cars varies by state and jurisdiction, but they are typically allowed to exceed the posted speed limit when responding to emergencies.
It varies from state to state, town to town, road to road.