On Fri, Nov 7, 2014 at 8:29 AM, Dave Crocker <dhc@xxxxxxxxxxxx> wrote: > If there are constraints on issuing letters, satisfy the constraints. > As an example, there is no inherent reason we cannot open registration > farther in advance. The fees might not be set that far in advance. But still, people who need the letter might be charged the same fee as the last meeting prior to requesting early registration. The IETF might even charge a nominal early registration fee of -say- $50, if it doesn't negatively impact the visa process.