Muggles! Likely referring to Harry Potter. Could also be a name.

Play joy!

Incredible plate - No PG&E - the power company in California, promoting their solar business.

Pool Merced! Referring to their business.

Tahoe A4, an Audi A4 in Tahoe!

Forever his. Maybe referring to spouse, maybe referring to a higher power?

Liam's car! Or maybe the car is named Liam?

Genitalia? A play on someone's name?

Joy oy oy? An exclamation of joy? Someone's name?

Hi Jerome!

Surf Hog! Maybe a surfer? There's also a BBQ restaurant named "Surf Hog".

Watch out!

Oh no, late again!

We tango! Maybe they are dancers!

Eight Taylers? Maybe a family of eight?

Zen lady! Maybe someone into meditation

One big truck!

Mex Jet? Mexican Jet?

Loving for you ma!

Mom's favorite! Maybe referring to the car or the child?

Amused as well

Siri, the Apple assistant, as a girlfriend?

All free! But why?

Athiest

Nissan for Mo!

LOL BMW! Wonderful

You topic? Utopic as in utopia?

College Pro! A plate for their business.

A Nissan for Mo?

Go Get Rz? What is Rz? Who knows.

The IBM 1620 was an early scientific computer from 1959. Maybe they work for IBM?

IOOO1O1 - this would be a hard plate for a cop to read on the go! Maybe designed to confused license plate readers?

Berkeley New York?

Iterator? Someone who iterates?

Macho axe? A manly axe? Someone's nickname?

Doctor Divit? Maybe a golfer? Or a weird type of doctor?

Pod doctor? Most likely a podiatrist!

24/7 Bear. Maybe a nickname or a large, furry man?

Swoon! How cute.

Surfari? A safari for surfing? Maybe they are a surfer.

Highway Name? Unusual plate.

Oh my goth? Maybe a goth?

Teacher's assistant to teacher! Very funny!

Recover, spelled wrong?

Mystery!

Love San Francisco, their home!

Nerd out!

San Francisco Girl!

Hi Dono. Saying hello to someone named Dono?

Critical?