An Auckland mayoral candidate is throwing his support behind congestion charging.

It's expected it will be included in the Government's Emission Reduction Plan being released today.

Efeso Collins says the Government needs to prove a charge will reduce emissions and be equitable.

He told Mike Hosking it's much better than the regional fuel tax.

“Why I voted against the regional fuel tax in the first place was because it’s a very aggressive tax and it hurts the poorest parts of our community the most.”

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