. >> the new california energy code is the country's most stringent energy code. and it says that in many cases, you must install energy first lighting pictures in new construction and when you're replacing pictures and you have to install -- fixes and you have to -- fixtures and you have to install four pins in kitchens for example and they cannot be replaced with screw type sockets. it will only take this type of bulb. you have to replace the whole fixture to go back. >> there is a prohibition against using edison-based fixtures. there are exceptions. for residential kitchens, more than 50% of the wattage has to be energy-efficient and throughout the rest of the house, you have to use energy efficient dimmers or you have to use fluorescent light bulbs. you can design with incandescent lights, although i anticipate in future energy efficient codes, that exception will go away. >> there are lots and lots of other requirements in the california energy code that relate to electrical installation. for example, you can no longer put electriresistance heat in buildings

energy codes are strict like disabled access codes. they are turning to the green building codes. we will see new green building requirements for san francisco. now the california energy code fills the space of green building requirements. fire department where you have an occupant load of 50 or more and the occupant load is not the patrons it's based on the square footage of the restaurant typically 50 square feet per person. if you have 50 or more the fire department wants to see a complete seating plan to make sure exiting is not blocked. of course, we need to see exits. san francisco probably the number one problem that i see that is difficult to resolve is how you get out of the land locked buildings where you have one front street frontage and no back or side entrances which typically mean you need to put a fire corridor. in there was a change in the california building code in january saying where there is a fully sprinklered building the exits have to be separated a third of the diagnal distance. a technicality but it makes a difference a third degree of the diagonal difference meansure able to have 2 doors on the fall of the building which previously y

it's very finely tuned how much fresh air and how much -- and the new california energy code standards very strict as to exactly how you balance it so you don't have to use too much heat or too much cooling power in these buildings. >> yes. and a libera little bit of a ner too is they can pressure nuance, the building is at a higher pressure than outside. all buildings have little leak points. if they want they can pressurize this building slightly higher than the pressure on the outside such as this air is being pushed out as opposed to the outside air being sucked in. >> and speaking