So, are there certain parameters that define a "cross-country" course as opposed to an "off road" course as opposed to a "road course with an off-road segment"?
I measured a course this past weekend which is intended to be a snowshoe race the last weekend in January. If there isn't enough snow, they'll have a running race. If there is enough snow, the surface will be snow. The course starts and finishes across a large grass field like a cross-country course would. Most of the rest of it consists of segments on well-defined gravel, crushed limstone, and asphalt walking paths, but there are a couple of shortcuts across grass areas.
I think I can define the course. I don't see any reason why I shouldn't certify it. I wouldn't feel differently if someone else had measured it.
I think we should be quite pleased that event organizers are aware enough of the advantages of having an accurately measured course that they contact us for our assistance on events like these.