How The Ferret Ban Started
Dr. Taylor's Letter vs. the facts: New York City's rabies protocol.
The New York City Department of Health puts out periodic Health Publications. One of these publications, City Health Information (CHI) Volume 18 No. 1, April 1999: Rabies Prevention in New York City is available in PDF format.
On page 1 of this document, the New York City Department of Health recognizes that the Rabies protocol for ferrets in New York City, is the same as that of cats and dogs and not that of wild animals. (It's even hi-lighted in red!)
Not only that, but on page 2 the New York City Department of Health clearly refers to ferrets as the DOMESTIC Ferret.