Yesterday, CMS issued a revised blanket waiver to delay the Medicare Ground Ambulance Data Collection System.  With this modification, the data collection period for year 1 and year 2 for selected ground ambulance organizations will begin between January 1, 2022 and December 31, 2022 respectively. 

https://www.cms.gov/files/document/summary-covid-19-emergency-declaration-waivers.pdf