| 70-84-A | Failed | — | — | — |
| 71-25A | Failed | — | — | — |
| 71-26-A | Failed | — | — | — |
| 71-28-A | Failed | — | — | — |
| 71-49-A | Failed | — | — | — |
| 71-58 | Failed | — | — | — |
| 71-78-B | Failed | — | — | — |
| 71-90 | Failed | — | — | — |
| 72-1 | Failed | — | — | — |
| 72-14 | Failed | — | — | — |
| 72-26 | Failed | — | — | — |
| 72-36 | Failed | — | — | — |
| 72-80 | Failed | — | — | — |
| 72-99 | Failed | — | — | — |
| B-20 | Superseded | NEUTRONICS ENTERPRISES, INC. | MICRO CONTROLLER FEEDBACK CONTROL SYSTEM | 0 |
| B-20-1 | Complete | Neutronics Enterprises, Inc. | Micro-Controller Feedback Control System | 0 |
| B-66-2 | Complete | Orange EV | T-Series Pure Electric Terminal Truck | 0 |
| B-66U | Complete | Orange EV | T-Series 4x2 Terminal Truck | 0 |
| B-66U-1 | Complete | Orange EV | T-Series Pure Electric Terminal Truck | 0 |
| B-68 | Complete | Zelectric Motors, LLC | Zelectric EV Retrofit 1.0 | 0 |
| B-71 | Complete | Complete Coach Works | ZEPS (Zero Emission Propulsion System) | 0 |
| B-76 | Complete | evLABs | Model EV45 100% Electric Powertrain | 0 |
| B-77 | Complete | Lightning Hybrid, LLC | City Transit Bus LEV Repower | 0 |
| B-79 | Failed | — | — | — |
| B-80 | Complete | Maxwell Vehicles LLC | ePro System (new) | 0 |
| B-80-1 | Complete | Maxwell Vehicles LLC | ePro System (used) | 0 |
| D-1 | Complete | Contignitron | Equalizer Mod 4-8 | 0 |
| D-1-1 | Superseded | Contignitron Company | Model 46 and Model 48 | 0 |
| D-1-2 | Complete | Contignitron Company | Model 4-8 | 0 |
| D-1-3 | Complete | Contignitron Company | Model 46, Model 48 and Model 48C Electronic Ignition System | 0 |
| D-1-4 | Complete | Contignitron Company | Equalizer Model 4 (Mod IV) | 0 |
| D-1-5 | Complete | — | — | 0 |
| D-10 | Complete | Gaylord Electronics Inc. | Compu-Spark | 0 |
| D-100 | Superseded | P and M Research and Development Laboratories | Petro-Mizer MKI (TM) | 0 |
| D-101 | Complete | Martek Products Inc. | Martek 440 Electronic Ignition | 0 |
| D-101-1 | Complete | Martek Products, Inc. | Martek Electronic Ignition System | 0 |
| D-102 | Complete | Power Haus Products Inc. | Oettinger/Okrasa Volkswagen Engine Modification Kit | 0 |
| D-102-1 | Complete | Power Haus Products Inc. | Oettinger/OKRASA Volkswagen 1800 cc Engine Modification Kit | 0 |
| D-103 | Complete | Anderson-Harren Development Company | Hydro-Air Water Injection System | 0 |
| D-104 | Complete | TMS Records | Jet Power Ring R-14 | 0 |
| D-105 | Complete | Spearco Performance Products Inc. | Injectronic Electronic Liquid Injection System | 0 |
| D-106 | Complete | Zemco, Inc. | Fuel Saver | 0 |
| D-106-1 | Complete | Zemco, Inc. | Fuel Saver | 0 |
| D-107 | Complete | Edelbrock Corporation | Vara-Jection | 0 |
| D-107-1 | Complete | Edelbrock Corporation | Micro-Plus Ignition Electronics | 0 |
| D-108 | Complete | The Mileage Clinic | The Bubblizer Vapor Injector | 0 |
| D-109-1 | Complete | Freedom Products, Inc. | Auto Jet Heater | 0 |
| D-11 | Superseded | Thermo King Corporation | Thermotronic | 0 |
| D-11-1 | Superseded | Western Controls Inc. | Western Controls Breakerless Capacitive Discharge Ignition System | 0 |
| D-11-2 | Superseded | Western Controls Inc. | Breakerless Capacitive Discharge Ignition Systems | 0 |