They are not allowed to exceed speed limits
In general the answer is, technically, no, you may not. However if you are passing a slower moving vehicle it would be considered 'lawful' to exceed the limit to pass the slower moving vehicle and then immediately return to the posted limit once it was passed.
Vehicle in front of you
Yes, it may be excused under certain circumstances - all of which would be emergencies. One possible exception (in many states) is when passing another car on a two lane road where you can exceed the limit up to 10 mph if reduced when back in your lane.
If you have an acceleration lane you should accelerate to the flow of traffic and merge into traffic.
It is important to drive the posted speed limit, and especially in school zone. The ticket for this can range from $100-$300, depending on any classes taken because of this incident.
NEVER
No. It is never legal to exceed speed limits, except in the instance of emergency vehicles responding to a callout. The moment you go 1 MPH over the speed limit, you're in violation.
It is never legal to go above the posted limit. Even when passing a vehicle. That's called an absolute speed law. Only emergency vehicles responding to an emergency may exceed the limit and then only when "reasonable".
They are allowed to exceed the speed limit when Lights and siren are all on.
It is what your limit is what you can not exceed.
Exceed means to go over a limit. i.e. This year, we exceeded the limit of how much money we were supposed to raise for a charity.
Do not exceed the speed limit is correct
The law states that you cannot exceed the posted speed limit.
Why did he exceed the speed limit? Now he has a hefty fine to pay.
I will exceed the speed limit. Giving 10 examples might exceed my patience.
You should not exceed the posted speed limit on residential streets. Deaths from the typhoon were expected to exceed those from the previous storm.
In most countries it is against the law to exceed the speed limit. The total cost of the new airport will exceed 100 million dollars