give you an overview of how we conduct our work in the department, the role of the historic preservation commission, and the purpose of the service. the california environmental quality act -- it is important to distinguish between what happens over the secret and what happens in other aspects of our preservation. there are other parts of the city represented by the departments here today. >> good afternoon, supervisors. i am tim fry, with planning department staff. what i would like to present to you today is essentially where preservation is legislated at the local level, and where preservation policies come into play in the department process. if you would like detailed information about the subjects, i have left plenty of time for questions. the preservation program began in 1967, with the adoption of article 10 of the planning code. this also created the landmark preservation advisory board. this was to recognize and protect san francisco's historic architectural character. in 1985, article 11 was created. article 11, when it was adopted, provided additional protection for the significant buildings in our zoning districts, particularly c3 districts. that was inc