How do I get a muzzleloading endorsment on my lisence?

I want to participate in the muzzle loading only season. I noticed that in order to do so, it was necessary to have a muzzle loading endorsement (like my archery endorsement) on my license. i have, however, been unable to find any class information.
I am an NRA muzzle loading rifle instructor, so I really don't need more instruction, just endorsement.
thanks for your help.

Answer: 

We don't require proof of muzzleloader education or previous use for a muzzleloader validation like we do for archery.  Go into your local vendor--they can issue the muzzleloader validation on the spot.
 

Answered on: 
Friday, October 19, 2012 - 1:40 PM MDT