SF rent control board was only supposed to last 15 months

If I'm reading this correctly also file under 'nothing promised to be temporary actually is'

his ordinance shall be in effect for 15 months. During this time, a Citizens' Housing Task Force shall be created to conduct a further study of and make recommendations for, the problems of housing in San Francisco. In the interim, some immediate measures are needed to alleviate San Francisco's housing problems. This ordinance, therefore, creates a Residential Rent Stabilization and Arbitration Board in order to safeguard tenants from excessive rent increases and, at the same time, to assure landlords fair and adequate rents consistent with Federal Anti-Inflation Guidelines.