People who exceed the limit will get 3 penalty points.
Motorists are being advised about a new speed camera which will come into operation next week.
A 'Motorway Average Speed Safety Camera' will be in place in Co. Tipperary.
The camera monitor the average speed of a vehicle between two points, with an €80 fine and 3 penalty points for those exceeding the limit.
Although there's been a similar camera in place in the Dublin Port Tunnel, it's the first time one will be deployed on an Irish motorway.
Motoring and Transport Commentator Conor Faughnan isn't sure it will work:

Gardaí Issue Scam Alert For WhatsApp Calls Looking To Gather Personal Information
Kildare Has Second Highest Breast Cancer Survival Rate In The Country
A Growing Crisis: More Pensioners Facing Homelessness
Vacuum-Packing Machine Lid Killed Worker As Kildare Town Firm Faces Court Over Second Fatality
Water Test Failure Disrupts On-Base Military Training At Curragh Camp
Government Told Grok Clothing-Removal Feature Has Been Disabled Worldwide
Kildare North TD Says He Acted Immediately To Repay Pension Overpayment When It Came To Light
Maynooth Study: Pet Loss Causes The Same Level Of Grief As Losing A Loved One