mr. l.uten, as you will deposit your jacket as all d.b.i. members do. the floor is yours. >> thank you. good afternoon. so just to give a brief overview of the ordinance, i'll give as brief as i can. so chapter 41 of the san francisco administrative code titled the residential hotel unit conversion and demolition ordinance, we call it the h.c. o. or hotel conversion ordinance. it was enacted on june 26, 1981 in response to a recently-declared housing emergency that was created by the loss of approximately 6,000 residential guest room from the rental market. that caused the displacement of elderly disabled and low-income persons. though the primary purpose of chapter 41 is to preserve residential guest rooms, also called s.r. o.s, in the city, as they are crucial source of housing for elderly, disabled and low-income tenants. residential guest rooms are typically sleeping rooms without the private bathrooms or cooking facilities. the original d. o. required all owners and operators to file an initial unit usage report, indicating the total number of guest rooms within their hotels and ho