This suggests that it's not legal anywhere in the US either, with the exception of cyclists in some states: https://www.quora.com/Are-rolling-stops-legal-at-stop-signs-anywhere-in-the-US
I believe the wording is because not all intersections have a painted line showing where to stop, and 'at the line' is not a very precise definition anyway - how far forward or back can you go before not being 'at the line'?