According to the NYS DEC's website, if you hunt & kill certain species (bobcats, martens, etc.) you must get its pelt 'sealed'.
If you Google pelt sealing you'll get a strange list of articles, some of which mention the use of plastic tags applied to the pelt, but none (that I could find) that really explain what pelt sealing actually is.
More importantly, why seal a pelt? Why only for certain species?
I feel like this little tidbit of knowledge is an example of something that is well known by the hardcore hunting community, but hasn't really be made public knowledge to the unwashed masses. Any ideas?