Under California Penal Code Section 396, rental price increases during a declared state of emergency are limited to 10%, with the base rent determined by prior rental history or fair market rent (FMR) as defined by HUD. If a property hasn’t been rented in the past year, the allowable base rent defaults to 160% of the HUD fair market rent. The choice between county-wide FMRs and Small Area FMRs (SAFMRs) depends on local market conditions, with SAFMRs providing more granular, ZIP code-specific data.
