 Second, no smoking, except within an enclosed vehicle, trailer, or building, a developed recreation site, or while stopped in an area that is paved or free from dry vegetation. Third, no discharging or using any fireworks, tracer ammunition, or other pyrotechnic devices, including exploding targets. Fourth, no cutting, welding, or grinding metal in areas of dry vegetation. And fifth, no operating a motorcycle chainsaw, ATV, or other small internal combustion engine without an approved and working spark arrestor.