They're really not - the definition of using California household vs resident creates a huge unenforceable gray area for compliance
The only other place households are referred to is in the section defining which companies the rules apply to, which is also pretty straightforward in a plain reading. If a company's number of consumers, households, or devices exceeds 50k, they qualify.
> (B) Alone or in combination, annually buys, receives for the business’ commercial purposes, sells, or shares for commercial purposes, alone or in combination, the personal information of 50,000 or more consumers, households, or devices.