Tritium powered devices

Why is it legal to have a tritium powered scope on a rifle but not on an archery sight on a bow? Illegal to use.. Rifle & Shotgun... "With any electronic device attached to, or incorporated on, the firearm or scope; except scopes containing battery powered or tritium lighted reticles are allowed." Archery... "With any electronic or tritium-powered device attached to an arrow, bolt or bow. Except disabled archery permit holders may use a non magnifying sight with battery powered or tritium lighted reticles.
Answer: 
The Idaho Fish and Game Commission support equipment regulations for archery and muzzleloader equipment that are consistent with the primitive nature of the weapons.
Answered on: 
Tuesday, February 17, 2015 - 1:17 PM MST