The 2022 CalGreen Tier 1 and 2 EV Requirements The 2022 CalGreen Tier 1 and 2 EV requirements have changed. The requirements, and the associated costs to your project, have increased from the 2019 code. Electric vehicles play an important role in California’s efforts to reach its ambitious climate and air quality goals. These vehicles, … Continue reading 2022 CalGreen Tier 1 and 2 EV Requirements