CARB: What are the pros and cons of the two implementation options available to high priority fleets?

Under the Model Year option, the fleet can delay purchasing zero emissions vehicles (ZEVs) until the existing fleet reaches the end of its useful life. The con is that under this option, you cannot purchase internal combustion engine vehicles (ICE vehicles). Under the Milestone option, a fleet can purchase ICE vehicles, as long as the percentage of ZEVs in the fleet meets the benchmarks. The disadvantage is that fleet must buy ZEVs on a specific schedule.