Implementation Manuals
The Implementation Manual is a key resource for all HVIP participants. It outlines the voucher process, eligible technologies, and answers common administrative and policy questions. Published annually, the latest version and updates are posted below.
FY24-25 Updates
- FY24-25 Implementation Manual – effective August 14, 2025 to Present
FY23-24 Updates
- FY23-24 Implementation Manual – effective October 31, 2024 to August 13, 2025
- FY23-24 Implementation Manual Appendix I – Demo Provision – effective October 31, 2024
- FY23-24 Implementation Manual Appendix F – Innovative Small E-Fleet (ISEF) Pilot Set-Aside – effective June 3, 2024
- FY23-24 Implementation Manual Appendix G – Zero-Emission School Bus and Infrastructure (ZESBI) Project – released April 30, 2024
FY22-23 Updates
- FY22-23 Implementation Manual – released August 29, 2023
- FY22-23 Implementation Manual Appendix F – Innovative Small E-Fleets (ISEF) – released June 2023
- FY22-23 Implementation Manual Appendix G – Public School Bus Set-Aside – released June 2023
- FY22-23 Implementation Manual Appendix H – Public Transit Bus Set-Aside – released October 2023
- FY22-23 Implementation FAQs – released April 2023
FY21-22 Updates
Historical Documents
- FY21-22 Implementation Manual Appendix F – Innovative Small e-Fleet Set-Aside – Published 7/8/2022
- FY20-21 Implementation Manual – Effective 4/29/2021 to 3/14/2022
- FY19-20 Implementation Manual – Effective 6/4/2020 to 4/28/2021
- FY17-18 Implementation Manual – Effective 1/10/2018 to 6/3/2020
- FY17-18 Implementation Manual – Effective 5/25/2017 to 1/9/2018
- FY16-17 Implementation Manual – Effective 4/10/2017 to 5/25/2017
- FY15-16 Implementation Manual – Effective 6/1/2016 to 4/9/2017
- FY14-15 Implementation Manual – Effective 1/21/2016 to 5/31/2016