As the Deputy will be aware, the consumer price for diesel fuel can be affected by a number of factors, which in addition to the level of excise duty, VAT and carbon tax, can include volatility in the internationally traded price of crude oil and its refined derivatives, and competition and demand in the domestic market.
As Minister for Transport, I am responsible for the development, monitoring and review of the overall policy framework for motor tax but do not hold any regulatory function in the setting of fuel prices. Taxation policy governing excise duty, VAT and carbon tax and the assessment of the impact of any changes to these rates is a matter for the Minister for Finance.