@mtclymer. I read this entire thread several times trying to figure out your exact concern with accepting this updated clause. It appears you are concerned with the clause's revised requirement for submitting a progress report with the voucher. Yet, you are already required in the contract to submit a progress report. So, your only concern in this entire matter is having to send the already created progress report to your billing folks so they can simply attach it to the voucher? Or, even more simply copying your billing folks on the email when you submit the progress report to the Government? Sorry if this sounds brash, but if that is the only concern, I'd venture to say you likely spent more time on this discussion thread (not to mention the back and forth with the CO) than you would have spent over the life of the contract by copying your billing folks on an already required and generated report.