Donegal delegates will be voting against Proposals A & B at tomorrow's G-A-A Special Congress at Croke Park.
The County Executive met on Thursday evening and have decided against both motions to change the structures of the football championship.
In a letter to the clubs the Donegal Executive said "the committee fully recognise and accept that change to the championship structures is required but are overwhelmingly agreed that neither Proposal A or Proposal B will deliver a fair and equitable change for all counties plus London and New York. We also cannot support any notion of amendments or tweaks being made to either proposal either on Saturday or subsequent to either of them being passed with a 60% majority."
"It is the firm position of Coiste Bainistiochta Dhun na nGall that updated and fresh proposals should be on the Clár of Congress 2022 in February that will deliver the championship structure that all counties desire and that will serve the Association well for many years into the future."
Donegal are the sixth county to oppose the option to turn the All-Ireland Football Championship into a league format.
Mayo, Fermanagh, Derry, Armagh and Galway have also declared their intentions to vote against the proposal.
A 60 per cent majority would be required in order for the motion to be carried.
Speaking on this weeks Score programme, Brendan Kilcoyne says neither proposal will work from an Ulster point of view: