| Page Cite | Date | Case | Carrier | Union | Craft/Class | Disposition | 49 NMB Number |
| 1 | 11/19/2021 | All | All | Comment Period for Proposed Changes to The NMB Representation Manual. | 1 | ||
| 4 | 1/13/2022 | All | All | Implementation of Proposed Changes to The National Mediation Board’s Representation Manual | 2 | ||
| 5 | 1/19/2022 | R-7563 | Meridian and Bigbee Railroad, LLC | International Association of Sheet Metal, Air, Rail, and Transportation Workers (SMART) | International Association of Sheet Metal, Air, Rail, and Transportation Workers (SMART) | Request for Re-Run Election Granted -Order | 3 |
| 8 | 1/20/2022 | R-7564 | Cicero Central Railroad | International Association of Sheet Metal, Air, Rail, and Transportation Workers (SMART) | Train and Engine Service Employees | Certification | 4 |
| 10 | 1/21/2022 | R-7565 | National Airlines | International Association of Machinists and Aerospace Workers (IAM) | Flight Attendants | Certification | 5 |
| 12 | 2/9/2022 | R-7573 | Philippine Airlines, Inc. | International Association of Machinists and Aerospace Workers (IAM) | Clerical, Office, Fleet and Passenger Service Employees (COFPS) | Dismissal | 6 |
| 26 | 2/15/2022 | R-7568 | Avelo Airlines | Association of Flight Attendants-CWA (AFA-CWA) | Flight Attendants | Findings upon Investigations – Authorization of Elections | 7 |
| 37 | 2/16/2022 | R-7572 | Alaska Airlines, Inc. | Aircraft Mechanics Fraternal Association (AMFA) | Mechanics and Related Employees | Dismissal | 8 |
| 45 | 2/17/2022 | R-7566 | Arizona Eastern Railway Company | International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART) | Train and Engine Service Employees | Certification | 9 |
| 47 | 2/22/2022 | R-7575 | JetBlue Airways Corporation | Aircraft Mechanics Fraternal Association (AMFA) | Maintenance Controllers | Dismissal | 10 |
| 57 | 2/22/2022 | R-7567 | Lufthansa Technik Puerto Rico (LTPR) | IAM | Mechanics and Related Employees | Appeal is Denied | 11 |
| 65 | 2/24/2022 | R-7571 | Ann Arbor Railroad | SMART | Train and Engine Service Employees | Dismissal | 12 |
| 67 | 2/28/2022 | R-7576 (CR-7224) | American Sales and Management Organization, LLC D/B/A Eulen America | SEIU | Fleet and Passenger Service Employees | Certification | 13 |
| 69 | 2/28/2022 | R-7577 (CR-7225) | American Sales and Management Organization, LLC D/B/A Eulen America | SEIU | Security Employees | Certification | 14 |
| 71 | 3/04/2022 | R-7570 | Columbus and Greenville Railway Company | SMART | Training and Engine Service Employees | Dismissal | 15 |
| 73 | 3/17/2022 | R-7580 (CR-7229) | Aerostar Airport Holdings, LLC | Hermandad de Empleados de Oficina, Comercio y Ramas Anexas de Puerto Rico | Firefighters | Dismissal | 16 |
| 87 | 3/22/2022 | R-7563 | Meridian and Bigbee Railroad, LLC | SMART | Maintenance of Way Employees | Dismissal WDI | 17 |
| 89 | 4/7/2022 | R-7569 | Midway Southern Railway, Inc. | SMART | Train and Engine Service Employees | Certification | 18 |
| 90 | 4/11/2022 | R-7578 | Sun Country, Inc. | AMFA | Mechanics and Related Employees | Election Cancelled – Re-run Ordered | 19 |
| 92 | 4/14/2022 | R-7568 | Avelo Airlines, Inc. | AFA-CWA | Flight Attendants | Certification | 20 |
| 94 | 4/20/2022 | R-7585 | Metro-North Railroad | Metro-North Railroad Professional Firefighters Association | Fire Brigade Employees Below the Rank of Fire Chief | FUI- Authorization of Election | 21 |
| 108 | 5/6/2022 | R-7567 | Lufthansa Technik Puerto Rico | International Association of Machinists and Aerospace Workers (IAM) | Mechanics and Related Employees | Certification | 22 |
| 110 | 5/18/2022 | R-7574 | Swift Air, LLC D/B/A iAERO Airways | Air Line Pilots Association, International (ALPA) | Pilots | Certification | 23 |
| 112 | 6/8/2022 | R-7583 | Breeze Aviation Group, Inc. | Air Line Pilots Association, International (ALPA) | Flight Deck Crew Members | FUI- Authorization of Election | 24 |
| 120 | 6/9/2022 | R-7578 | Sun Country, Inc. | Aircraft Mechanics Fraternal Association (AMFA) | Mechanics and Related Employees | Certification | 25 |
| 122 | 6/13/2022 | R-7590 | Long Island Rail Road | Transportation Communications Union/IAM | Station Employees | Dismissal-WDI | 26 |
| 123 | 6/13/2022 | R-7590 | Long Island Rail Road | Transportation Communications Union/IAM | General Foremen | Dismissal-WDI | 27 |
| 124 | 6/17/2022 | R-7582 | Northern Pacific Airways, Inc. d/b/a Ravn Alaska | ALPA | Flight Deck Crew Members | Certification | 28 |
| 126 | 6/22/2022 | R-7585 | Metro-North Railroad | Metro-North Railroad Professional Firefighters Association | Fire Brigade Employees Below the Rank of Fire Chief | Certification | 29 |
| 128 | 6/27/2022 | R-7592 (CR-7233) | TransitAmerica Services, Inc. | Amalgamated Transit Union | Dispatchers | WDI-Dismissal | 30 |
| 129 | 6/28/2022 | R-7581 | Eastern Airlines, LLC | AFA-CWA | Flight Attendants | Certification | 31 |
| 131 | 7/14/2022 | RD-7579 | Buffalo & Pittsburgh Railroad | IAM | Machinists and Machinists Helpers | Dismissal | 32 |
| 133 | 7/20/2022 | R-7584 | Lake State Railway | SMART | Train and Engine Service Employees | Certification | 33 |
| 135 | 7/21/2022 | RD-7586 | Northern Air Cargo | IBT | Dispatchers | Dismissal | 34 |
| 137 | 8/12/2022 | R-7583 | Breeze Aviation Group, Inc. | ALPA | Flight Deck Crew Members | Certification | 35 |
| 139 | 8/15/2022 | R-7597 | Norse Atlantic Airways | AFA-CWA | Flight Attendants | Certification | 36 |
| 141 | 8/26/2022 | R-7587 | Spirit Airlines, Inc. | AMFA | Mechanics and Related Employees | Certification | 37 |
| 143 | 8/29/2022 | R-7599 (CR-7234) | Air Methods Corporation | OPEIU | Check Airmen | FUI Authorization of Election | 38 |
| 150 | 9/2/2022 | RD-7588 | The Indiana Rail Road Company | BMWED-IBT | Maintenance of Way Employees | Dismissal | 39 |
| 152 | 9/14/2022 | R-7593 | Republic Services d/b/a San Francisco Bay Railway, LLC | BMWED-IBT | Operating/ Non-Operating Employees | Certification | 40 |