Time frames Period of implementation 2021-2030, implemented as a multi-year budget Scope and coverage Target type Absolute economy-wide emissions reduction expressed as an emissions budget covering the period 2021-2030 Gases covered Carbon dioxide (CO2); Methane (CH4); Nitrous oxide (N2O); Hydrofluorocarbons (HFCs); Perfluorocarbons (PFCs); Sulphur hexafluoride (SF6); Nitrogen trifluoride (NF3) Sectors covered Energy; Industrial processes and product use; Agriculture; Land-use, Land-use change and forestry (UNFCCC classifications); Waste % of base year emissions covered 100 per cent of greenhouse gas emissions and removals in Australiaâs national greenhouse gas inventory Assumptions and methodological approaches for emissions estimates and accounting Metrics Australia intends to apply 100 year Global Warming Potentials (GWPs) as contained in inventory reporting guidelines, currently IPCC Fifth Assessment Report 100 year GWPs, or as otherwise agreed. Emissions estimation methodology Australia will apply the IPCC 2006 Guidelines, or subsequent version or refinement as agreed by the CMA, and nationally appropriate methods consistent with that guidance and informed inter alia by the IPCC 2019 Refinement and IPCC 2013 Wetlands Supplement.Australiaâs Nationally Determined Contribution Accounting approach Australiaâs 2030 target will take the form of an emissions budget for the period 2021 to 2030.