Introduction. SB 611 amended the Rent Cap law. It became effective on July 6, 2023, meaning that all rent increase notices on or after that date had to conform to the new law. Section 5 of SB 611 applies to mobile home tenancies. It is substantially similar to the existing statute (ORS 90.600) but clarifies things a bit. The only major change is that there is now a rent cap set at 10%.