Another one bites the Dust "Heavylift"
ADS-B mandated now, baby. No ADS-B, no fly above FL280. Not across the continent, anyway. You apparently apply for an exemption for each single flight (with 2 weeks notice) to operate only within the east coast radar coverage "J-curve", and still a clearance above FL280 is at ATC discretion. Kind of eliminates short notice ad-hoc opportunistic charters anyway