SIFs in the US

"A ruling by the Supreme Court of Canada will not only have ramifications across Canada but will also likely have an impact in the United States, which has taken an active role in debating Canadian drug issues.40 A review of the legal framework in the United States concluded that states and municipalities have some authority to regulate safe injection facilities, but federal agencies could supervene under the Controlled Substances Act.41 Local public health activists have investigated the establishment of safe injection facilities in San Francisco and New York City.42 There are no official facilities in the United States, but anecdotally, some agencies do informally provide safer environments for drug injection."

Source: 

Dooling, Kathleen and Rachlis, Michael, "Vancouver’s supervised injection facility challenges Canada’s drug laws," Canadian Medical Association Journal (Ottawa, Ontario: September 21, 2010), Vol. 182, Issue 13, p. 1443.
http://www.cmaj.ca/content/182...