This report covers the work undertaken by the Executive Board of the clean development mechanism from 15 December 2020 to 9 September 2021. The reporting period saw a similar level of project registrations compared with the previous reporting period, but an increase in the issuance of certified emission reductions. The Executive Board implemented the temporary measures pending guidance from the Conference of the Parties serving as the meeting of the Parties to the Kyoto Protocol for the operations of the clean development mechanism after the second commitment period of the Kyoto Protocol, as referred to in the report on the 108^th meeting of the Executive Board. This report contains further recommendations of the Executive Board to the Conference of the Parties serving as the meeting of the Parties to the Kyoto Protocol in this regard.