Although it hasn't released the final report to the public, the FAA's unleaded avgas transition rulemaking committee (UAT-ARC), will recommend a fuel approvals process stretching out as long as 11 years and will be asking Congress for at least $60 million to fund the project, plus as much as $13 million from the industry. The report is now being reviewed by the Department of Transportation and sources told AVweb that it could be released "within a few weeks." Because the FAA insisted on keeping a tight lid on the process, none of the sources AVweb spoke to regarding the report agreed to be quoted. However, those we did speak to expressed satisfaction that the ARC's recommendations, if adopted in some form, will ignite meaningful progress in finding a replacement fuel for leaded avgas. "The snowball is starting to turn down the hill. There's some momentum here that's never been there before and I think it's a big positive," said Lycoming general manager Michael Kraft in this podcast recorded at Aero in Friedrichshafen. "What it does is to give anyone coming to market with a fuel a risk management plan. Nobody's willing to make the investment if they can't see the return," he added.
This is a companion discussion topic for the original entry at https://www.avweb.com/news/faa-fuel-committee-11-year-timeline-for-avgas-replacement