dr. ojo, is there anything in the housing code that addresses that? . >> smoking is a very complicated issue. we have some articles on our web site or i can fax them to you that have been recently written about cigarette smoke. general rule of thumb is you can outlaw smoking at the onset of the tenancy, but if a tenant is currently resides in the unit and they are smoking there's not a lot you can do about it. fortunately or unfortunately in san francisco we live in an area that there's wind blowing all the time. so you could have somebody on the street and secondhand smoke is going to blow into their unit. you could have somebody in the building next door and the smoke's going to blow into the unit. it's very difficult to control. there's dialogue going on now at the board of supervisors in some legislation that supervisor ross mirkarimi has in regards to cigarette smoke. so there's currently that dialogue going on. but there's more resources either off of our web site, which is as mentioned in the code enforcement outreach brochure, or i can give yo

dr. johnson ojo, the environmental house section of the department of public health, yvonne marrin from the city attorney code enforcement division and tom harvey. let's talk about tenants. obviously the first thing that we always ask when we get a call from an occupant of a building is have you talked with the property owner about those conditions? have you made them aware of what the situation is? and we always encourage you to do that, to communicate with the property owner, and also when a property owner undertakes it make those repairs to provide -- once you are provided with adequate notice under state law to make sure that you make the area accessible within a unit that you occupy so that those repairs can be done in a timely way. and if you find that that response is not forthcoming, then call us and at the very end of the presentation we'll be putting our contact information up on the screen. the landlord's responsibility is to survey their property frequently and that's going to depend upon building design, the building age, the wear and tear and use of the property. the second th