The Environment Agency published the ‘Medium combustion plant (MCP) section 5.1 Part B new permits: RPS 244’ and 'Specified generator and medium combustion plant new bespoke permits: RPS 243' on 2 October 2020 to alleviate their backlog of environmental permitting applications as a result of the COVID-19 pandemic. This open letter explains Ofgem’s proposed administrative approach to dealing with RHI accreditation applications where the applicant is operating their plant under the RPS. We intend to adopt this approach from the date of publication of this letter. However, we welcome stakeholder views on whether they agree with our proposed approach or whether there are significant issues that we have not identified. Any feedback should be provided by 8 March 2021.