The biggest concern in the Asian art market (and the antiques market generally) at present is the overly restrictive new regulation of the sale of objects made from endangered species (including ivory) that the U.S. Fish & Wildlife Service has enacted this year, known as Director's Order #210, along with even more restrictive regulations promulgated by several states including New York and New Jersey (that other states are now considering). These new rules make it virtually illegal for auction houses and dealers to sell and ship most antique ivory artifacts.They are in the process of being modified, however. A lot has been written about this by critics in the art world recently. Among the best and most concise is a commentary by Lark Mason, published in the ART NEWSPAPER, #262, Nov. 2014.
See also a short report on the NY regulations regarding the "deceptive" ivory trade, June 18, 2014, by attorney Michael McCullough of the law firm Pearlstein & McCullough
The US Fish & Wildlife Service has a web page with useful images to help distinguish ivory from other types of animal tusks. But still this is hard for novices to do and I recommend that when in doubt, consult an expert.
For information on the ongoing saga of these regulations see the website FIXESA.ORG
