| ES (Spain) | Applicants must wait for specific national calls to be issued before submitting Proposal Part 1 via the https://ideas.esa.int/ InCubed Channel. |
| FR (France) | Submissions must first be coordinated via the CNES platform (via email for the moment). Only once authorized by CNES can the proposal be submitted via the https://ideas.esa.int/ InCubed Channel. |
| GR (Greece) | Proposals can be submitted at any time via https://ideas.esa.int/ InCubed Channel. Written authorization of funding is not requested pursuant to Article 119 paragraph 9B of the National Law 4727/2020). |
| IT (Italy) | Upon successful evaluation of Proposal Part 1, ESA will coordinate directly with ASI to obtain the required Letter of Support. |
| NL (The Netherlands) | Tenderers must first discuss their ideas with the national delegation before submitting the Proposal Part 1 to ESA. |
| PT (Portugal) | Proposals can be submitted at any time via https://ideas.esa.int/ InCubed Channel, with two evaluation periods per year. |
| UK (United Kingdom), DK (Denmark) | Participation is strictly via national calls. National delegations will provide specific call details. Ideas must be submitted during the active call window. |
| All others | The standard InCubed procedure applies. |