. >> good morning, supervisors, deputy director of taxi and accessible services for the sfmta and i want to thank you, first of all for holding this hearing as you note as it is ann incredibly important topic and while the state assertion over this particular industry, and it has preempted local, regulation, i do think that it is important to have this discussion, on a local basis, to talk about how this new set of circumstances effects some local interests and so i did prepare. >> could i be very precise about the language that we use, when you mean preemption, what do you mean? i don't know if that is necessarily what has happened and so i want to make sure that we are very clear about what we are saying and accurate in the description of the language that is used. >> i am not wearing my legal hat today, i used to be a deputy city attorney i will not pretend to have legally alliesed this, but the principle under the law is a higher level of government, completely regulates some particular subject mat and her it does tend to ex-include the jurisdiction of the local governor to also regu