New Segment Rates under MAP 21

[ac]

Does anyone know when the IRS will publish the new 430 segment rates calculated under MAP-21? Or does anyone know where these rate have been calculated?

Thanks.

[Andy the Actuary]

The problem with (a major consulting firm) publishing a best guess is that funding segment rates have only been determined (or at least published) since September 2007. Extrapolation is only conjecture at how the IRS will construct an historical proxy. I.e., you're not likely to find any reliable 25-year averages. That's why most pieces you read guess an overall basis point increase or illustrate the new law by a round number supposition.