The FAA accepted new ASTM consensus standards for the light-sport category on 16 July 2026, clearing the certification path for MOSAIC aircraft and enabling manufacturers to sign statements of compliance. This final regulatory step activates Part 22 certification provisions effective 24 July 2026, permitting aircraft up to 3,600 lbs MTOW, four-seat configurations, retractable gear, variable-pitch props, and powered-lift designs like eVTOLs. Manufacturers including AIR and Tecnam can now proceed with certification, with first deliveries projected for early 2027. The shift from 2004 prescriptive rules to performance-based standards removes the previous weight cap and stall-speed-only limits, fundamentally expanding sport pilot privileges while decoupling them from the legacy LSA definition.