RACI (Responsible, Accountable, Consulted, Informed) is a pretty standard way of dividing up people’s roles in any sort of task set.

The “Consulted” role is defined as “Those whose opinions are sought, typically subject matter experts; and with whom there is two-way communication” on the wiki page.

A modest proposal: remove the “C” from your RACI matrices. If someone is consulted, they assume responsibility (defined as “those who do the work to achieve the task”).

Giving your opinion and then sitting back is rarely helpful. That’s my opinion, anyway.