The Ozone-Depleting Substances (ODS) and Fluorinated Greenhouse Gases (F-gases) UK Common Framework has now been published in a provisional form on GOV.UK: 

Ozone Depleting Substances (ODS) and Fluorinated Greenhouse Gases (F-gases): provisional common framework - GOV.UK (www.gov.uk)

If you have any comments, suggestions or feedback, please contact the ODS and F-gas Team at Defra (fgas@defra.gov.uk).  Feedback may be shared with relevant policy teams from the Scottish Government, Welsh Government and the Department for Agriculture, Environment and Rural Affairs (Northern Ireland).