Cyclists face €40 fines for a range of offences from today, the offences range from breaking a red light, not having lights in the dark or cycling in a pedestrian area.
The offences also include failing to stop for a school warden sign, cycling without reasonable consideration, cycling beyond a stop line or barrier at a level crossing, lifting bridge or swing bridge when red lights are flashing.
Cyclists caught committing one of the seven offences will be asked to provide their address and they will be sent the fine in the post. They will have 28 days to pay that fine, or it will increase to €60.
If that fine is not paid within a further 28 day period, they will receive a court summons and could be fined up to €1,000 in court.
The roll-out of fixed charge notices for seven of 36 cycling offences follows consultations between the Department of Transport, the Road Safety Authority and gardaí.
Dublin Metropolitan Regional Traffic Division Superintendent Tom Murphy said that while they are relying on the honesty of cyclists, gardaí could ask cyclists for identification documents.
Superintendent Murphy said gardaí could also seize the bicycle if they were not satisfied with the name and details given.
In the case of Dublin Bikes and Coke Zero Bikes in Cork, Limerick and Galway Superintendent Murphy said gardaí could check the records of those bicycle users.
