This part is interesting, although the rebate isn't currently funded.
(b) (1) The department shall not issue a decal, label, or other identifier to an applicant who has received a consumer rebate pursuant to the Clean Vehicle Rebate Project, established as part of the Air Quality Improvement Program pursuant to Article 3 (commencing with Section 44274) of Chapter 8.9 of Part 5 of Division 26 of the Health and Safety Code, for a vehicle purchased on or after January 1, 2018, unless the rebate was issued to a buyer whose annual income falls below one hundred fifty thousand dollars ($150,000) for a person who files a tax return as a single person, two hundred four thousand dollars ($204,000) for a person who files a tax return as a head of household, and three hundred thousand dollars ($300,000) for a person who files a joint tax return.