http://www.deltasociety.org/ServiceInformationBasic.htm
go here & read this/you may find it helpful and it may clarify
(I am still searching for the pages I read specifically on New York State
And what I read in the NYS one is that no one could ask the reason the SD was with a patient/it specified that most people could not distiguish a SD dog if a disability was not visible but it was still not allowed to be questioned, hopfully I can find that page.
be back when I can