Pre-64 each county could use their own discretion but were required not to go below the SB420 limits. The Kelly decision allowed some counties to limit to 99. (Santa Cruz was one, trust me) Also, the Feds typically won
t mess with a garden that small unless you are collateral damage, like growing 98 next to your neighbor with 1500.
When I had 75 indoors the Sonoma the Sheriff laughed at my grow and literally said "We don't care about that shit unless we can smell it from 1/4 mile away, locked my grow room door and walked away.
Now that 64 is here you gotta watch out for the regulators, particularly the SWRCB. They are very serious about water use because of its use in our drought State. I actually found an old, long lost grow buddy because he showed up on their publicly posted violaters list. Individual counties can still do what they want with more flexibility outside of the med rules which are beginning to deteriorate. Shit, look at Fresno County as an example. No grow, no dispensaries.