How fast can you legally go over the speed limit?
In states that use this system for all or some of their roads—California and Texas, for example—it’s legal to drive over the posted limit as long as you are driving safely.
For example, if you are driving 50 mph in a 40-mph zone, you are “presumed” to be speeding.
Are you allowed 10 over the speed limit?
According to guidance from the Association of Chief Police Officers (ACPO) enforcement will normally occur when a driver exceeds the speed limit by a particular margin. And the particular margin is normally 10 per cent over the speed limit plus 2mph.
How fast can you go in a 70mph zone?
The upper limit is 10 per cent of the limit plus 9mph. So in a 70mph it’s 70mph plus ten per cent (77mph) plus 9mph, which equals 86mph. Get busted at this speed and you could get away with a speed awareness course and avoid points. Go faster than that and it is likely you will face points and a fine.
Can you get a speeding ticket after 14 days?
You may have heard that if you get a speeding ticket through the post more than 14 days after the vehicle you own was photographed speeding, the ticket can be cancelled. There is some truth to this, but the rules are more complicated than that. The 14 days also does not include the day of the speeding offence.