People wanting to dispose of waste at council-run rubbish tips will have to show identification to prove they live in Caerphilly County Borough.
The new rule will come into effect at the council’s six household waste recycling centres from April 1 after it was approved by councillors last month.
The move is aimed to stop residents from neighbouring authorities from using the facilities, causing onsite congestion and increasing waste disposal costs.
While supportive of the original proposals, cabinet members voted to include bus passes within the identification requirement, rather than just a valid driving licence.
Deputy leader Barbara said limiting the proof of residence to just driving licence would be problematic for those who may not be able to access the site by car.
Cllr Jones asked: “What if I lived in Cardiff with an elderly relative living in the borough who needs waste disposed, but I’m the only one who drives?
“Could I not bring their bus pass? You really would have to accept that? I think it’s going to create some difficulties for some of our elderly residents.”
Councillor Lisa Phipps had concerns that fly-tipping would increase after the new rules are introduced and said: “If people with cars full of rubbish are being turned away, aren’t they’re going to drive to their nearest quiet lane and dispose of it illegally?”
However councillors were told by Hayley Jones, waste strategy and operations manager, that other councils had introduced similar restrictions and had not seen a “notable increase in fly-tipping”.
Caerphilly County Borough Council currently spends more than £2 million on waste disposal costs, with costs rising alongside increasing numbers of out-of-area residents using its waste and recycling centres.
Council leader Dave Poole said: “I don’t think anyone on this cabinet is happy that ratepayers in Caerphilly are paying to dispose the waste of people from other counties.”
The authority is planning to run a public awareness campaign in the weeks prior to the new rules coming into force.