through the tireless efforts of jerry cunningham, he's a local fire protection engineer and appointee by you people to the code advisory committee for 15 years or so, he put together this administrative bulletin that will give some opportunities to customers that have needs related to it. what ab 105 does is it provides voluntary process for documenting a fully sprinklered building. it's basically administrative permit that puts into the public record that this is a fully sprinklered building. i'll explain why that's important in a minute. many high-rise buildings in san francisco were built without sprinkler systems over the years. it wasn't a requirement by california until about i think somewhere around the early '70s. so, in 1993 the san francisco passed an ordinance to retrofit certain types of buildings with sprinklers. it was a mandatory retrofit and it covered -- what it did cover was commercial high-rises and tourist hotels. what it didn't cover is pre-1974 high-rise apartment buildings or condos, historic buildings, or mixed use buildings that had residential occupancies in