I suggest making 20-40-80 apply to the Federal Write-in Absentee Ballot (FWAB) as well as the Federal Post Card Application (FPCA). Such a change would make it clear that, while the ballot portion of an emailed or faxed FWAB could not be counted (because ballots cannot be emailed or faxed back to electoral boards), the registration portion of the FWAB could be accepted and processed as a voter registration.