If at the first planning meeting for a CME activity, all committee members are asked to disclose, and each member responds that he/she has nothing to disclose (or disclose something), and this information is reflected in the minutes of the meeting - is that enough documentation that disclosure was sought?

Yes. That documentation would verify that the first step of a mechanism for identifying conflicts of interest is in place. That would document for ACCME that the Provider knew the relevant financial relationships of the Committee members. However, keep in mind that the provider would need to be able to show that there was an assessment of whether or not the information disclosed caused a conflict of interest and if so, what was done to resolve the conflict.