With ATV trails opening today, the Wisconsin DNR is issuing a critical safety reminder one that carries deep personal weight for a Winnebago County mother.Joseph Mulroney, a Wisconsin DNR lieutenant, outlined the state's requirements for riders."Helmets are required for anybody under 18 years old. Seatbelts are required in UTVs for any occupants," Mulroney said.WATCH THE FULL BROADCAST HERE: Wisconsin DNR urges ATV safety as trails open in 2026T…