I think it is probably a designator for volunteer. We didn't have such a designator on any National Forest I worked on. To my west I've not heard anything similar on the Sierra National Forest. National Forests next to huge metro areas have bigger volunteer programs because there is a larger and usually more wealthy population to draw from, or people who can afford to work for nothing for whatever reason. When I've had volunteers, mostly working in designated wilderness, I gave them a regular designator. All the other field going employees on the forest as well as the dispatcher knew who it was. We didn't have to give them a "victor" to identify them.
Then again on a forest with a large volunteer program they would not have enough regular designators to cover all the volunteers. Congress authorized the use of volunteers around 1980, give or take a year and told the agencies they were to be used to supplement the workforce to do jobs that the regular workforce could not accomplish and they could not do the work of regular employees. At first we used them as campground hosts and for gathering simple data for research projects and for making management decisions. Well guess what?
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