It’s one and done.I didn't know that, they need to be renewed every 5 years? do they need to be removed/replaced or just renewed?
Once a car gets its sticker, then it is not renewable. Also, it is only 4 years.
Obtain a Clean Air Vehicle (CAV) decal to use carpool and HOV lanes. Learn about eligibility requirements, emission standars, and applying for a decal.
If you get a blue (2021) sticker this year, it expires on 1/1/2025. The blue sticker (unless they extend) expires prior to the Sept. 30, 2025 end of single person carpool lane occupancy.