Business Correspondent Joe Lynam, says there's concern it could lead to a monopoly and push up prices.
A change to the waste-collection system could see bin companies bidding for entire regions rather than individual customers.
The Department of Environment has been looking for feedback on the proposal to allow firms to tender to collect rubbish in specific areas.
Business Correspondent Joe Lynam, says there's concern it could lead to a monopoly and push up prices.

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