Junior Minister Jack Chambers believes a limit of 30 kilometres per hour is necessary in some urban areas.
Built-up areas in Kildare could see lower speed limits introduced by early next year.
Cabinet has signed off on proposed new legislation to lower the default limits in certain areas like towns.
There will also be mandatory drug testing at the scene of crashes, while there will be stricter rules surrounding penalty points.
Junior Minister Jack Chambers believes a limit of 30 kilometres per hour is necessary in some urban areas.

Kfm Recruiting for Advertising Sales Dept.
This Weekend's Live Sport on Kfm
Gardaí Warn Drivers After 150 Caught Drink or Drug Driving Over Christmas Period
An Garda Síochána Release Image of Getaway Car Found Burnt Out In Naas Used In Fatal Offaly House Fire
Pedestrian Dies After Collision On R445 Monasterevin Road Outside Kildare Town
Gardaí Continue Their Road Traffic Enforcement Operation Throughout The Christmas Period
New Quality Mark To Be Introduced To Crack Down On Bogus English Language Schools
Kildare Set For Freezing Temperatures As Wintry Showers Forecast