More than a month past deadline, the Recovery Accountability and Transparency Board finally responded to Rep. Darrell Issa’s (R-Calif.) June 24 request for an estimate of the total cost of stimulus road signs — but failed to provide a comprehensive estimate.

Issa, ranking member of the Oversight and Government Reform Committee, asked for the cost assessment by Aug. 1, but RAT board chairman Earl Devaney didn’t deliver the response until Sept. 9. Enclosed with it were letters from six different federal agencies. They included loose estimates of just how much the agencies have spent on stimulus signs — but the estimates don’t satisfy Issa’s request for the total cost of the signs.