A decision about whether to change the rules to allow people to ride on the footpath has been delayed until after the election in September.
It is part of a raft of proposals in the Government's Accessible Streets programme.
It would require anyoneriding a device on the footpath - including e-scooters- to give way to pedestrians, to not exceed a speed limit of 15km/h, and for the device to be no wider than 75cm.
Other possible changes include imposing a minimum distance for vehicles when they overtake bikes, horses, e-scooters and other wheeled transport. Cars would have to allow a 1-metre gap when the speed limit is 60km/h or less, and 1.5m when going faster than that.
The agency said the Covid-19 pandemic might have prevented some people from making a submission and the extension would allow them to have their say.
The proposals have been welcomed by cycling advocates who say the current rules force parents to tell their children to break the law and ride on the footpath in order to keep safe.
They also say the new passing distances will help protect cyclists.
But disability advocates slam the ideas, saying allowing bikes on footpaths will endanger vulnerable people's lives - particularly the blind.