But once the new bylaw came in, the council would lose its powers under the old bylaw to issue infringement fines and could not enforce it.
Mr Penrose said the Minister of Transport was being asked to review the Maritime Transport Act so the council could issue tickets.
"But the focus of this bylaw is not about handing out tickets but ensuring people are safe out on the water.
"We are encouraging self-regulation so that skippers understand that they are responsible for keeping themselves and their passengers safe and to minimise the risk of preventable injury and drowning."
Mr Penrose said the council was developing an awareness programme that included new signage at every boat ramp in the region.
The boating community, which had backed skippers' discretion, had offered to help, and WaterSafe Auckland was gearing up its programmes.
Coastguard Boating Education general manager Neil Murray said the council's bylaw was a "step in the right direction".
The National Pleasure Boat Safety Forum has recommended to the minister that the national regulations should be amended for compulsory lifejacket-wearing on small boats, subject to the skippers' discretion.