Ryan, You might check with the local CO reference some of the out of state atv’ers and registration exemption:
321G.8 EXEMPT VEHICLES.
Registration shall not be required for the following described
snowmobiles:
1. Snowmobiles owned and used by the United States, another
state, or a political subdivision of another state.
2. Snowmobiles registered in a country other than the United
States used within this state for not more than twenty consecutive
days.
3. Snowmobiles not registered or licensed in another state or
country being used in this state while engaged in a special event and
not remaining in the state for a period of more than ten days.
4. Snowmobiles used exclusively as farm implements.
[C71, 73, 75, 77, 79, 81, § 321G.8]
89 Acts, ch 244, §13; 2002 Acts, ch 1027, §6; 2004 Acts, ch 1132,
§9; 2005 Acts, ch 138, §8
Check paragraph #3. Also the orange flag which was 321G.13 para 9 I’m sure has been repealed but double check it also. I’m not updated as I use to be.