The UK resubmitted its 2020 NDC target in 2022. Its latest NDC, however, provides more detail on additional information that improves transparency around the UK's decarbonization plans.
The UK's NDC covers all sectors and gases. For CO2, CH4 and N2O the reference year is 1990 and for F-gases the reference year is 1995. The UK’s overall absolute target is to reduce GHG emissions at least by 68% (including LULUCF) by 2030 compared with reference levels. Emissions from International Aviation and Shipping are not included.
The UK has a policy framework in force establishing the binding commitment of net zero emissions by 2050, and Scotland sets bolder goals to reach net-zero in 2045 and 75% below 1990 by 2030. Wales pledges at least 80% reduction by 2050. 

The Climate Change Act introduced carbon budgets for the UK Government, which cap emissions over successive five-year periods and must be set 12 years in advance.

The UK government is putting into force the Clean Growth Strategy, which is a Ten Point Plan for a green industrial revolution, encompassing clean energy, buildings, transport and technologies. Moreover, the government pushes for individual plans across key sectors such as Energy White Paper, Transport Decarbonisation Plan and Heat and Buildings Strategy (UK NDC, 2020).

UK’s NDC establishes a reduction of 68% of 1990 levels including LULUCF emissions. If LULUCF is excluded, this is equivalent to 69% or 251 MtCO2e. CAT classifies this as strong target and once the UK adopts national policies (2030 ban on the sale of fossil fuel cars and a ramping up of renewable energy investment, particularly into offshore wind) it will bring their emissions in line with the 1.5°C goal. Also, the UK has a net-zero goal by 2050. CAT cannot rate, at this moment, the UK target due to complexities derived from Brexit (Climate Action Tracker, 2021).