There is one more step to go before New Plymouth’s red rubbish bags are tossed out in favour of wheelie bins. Proposed changes to the district’s kerbside collection would introduce a 20 litre sealable bin for food waste that would be collected weekly, with residents also getting a small kitchen bench caddy and compostable bags. But the changes have to go through the long term plan (LTP) process, which would include public consultation early next year, New Plymouth District Council chief operating officer Kelvin Wright said.