A voluntary ban on the sale of alcohol from off-licences will be in place until 4pm in Dublin city centre on St Patrick's Day.
In relation to bars in the area, RTÉ News understands that the voluntary ban applies only to off-licence sales and not to regular bar trade.
"The St Patrick's Day Parade is a family friendly event and the showcase event for the St Patrick's Festival and to assist Gardaí with the policing event of this event, licence holders are requested to voluntarily refrain from selling off sales until after 4pm on 17 March," a Garda spokesperson said.
A similar ban has been in place in previous years.
The spokesperson also said that "where necessary" gardaí will also enforce laws prohibiting the drinking of alcohol in public places.
The Licensed Vintners Association said all pubs in the city centre will be open for the full permitted trading hours on St Patrick's Day – 12.30pm to 12.30am.