Yes.  There are differences between the California Tenant Protection Act (AB 1482) and the Rent Stabilization Ordinance due to State law restrictions and local policy objectives.  Units exempt from the RSO may be protected by AB 1482.  Some of the key differences between the two are highlighted below.

AB 1482 RSO
Exempts dwelling units that first receive a certificate of occupancy within 15-years, which is applied on a rolling basis Exempts dwelling units that first received a certification of occupancy after February 1, 1995
Exempts units if they are restricted to be affordable for low- or moderate-income residents, which can included privately-owned and deed-restricted affordable housing Exempts units owned, operated, or managed by a government agency or that are exempt from local rent regulation by law, but does not exempt affordable housing with only deed restriction
Does not exempt single family homes that are owned by certain entities Exempts single family homes regardless of ownership
Exempts duplexes if one is the owner’s primary residence at the beginning and throughout the tenancy Does not exempt duplexes regardless of owner-occupation of second unit
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