Dublin City Councillors have voted to accept the council's strategy for Heavy Goods Vehicles.
But the councillors have also voted to introduce a complete ban on large trucks on roads around the city centre - a year earlier than originally planned.
A proposal to extend the ban to smaller trucks earlier than planned was dropped.
The HGV strategy, published last month, proposed banning trucks with five axles or more from the city centre between 7am and 7pm.
But it allows trucks to have access to Dublin port via East Wall Road on the northside and Seán Moore Road on the southside, until the first phase of M50 upgrade works are completed in 2008.
Councillors have now decided to close off these access routes to hauliers on 1 January 2007.
