Senate Judiciary B Committee Chairman Gray Tollison of Oxford said Monday the new Mississippi law, which takes effect July 1, is consistent with a federal law enacted in February.
The federal law says licensed gun owners may take firearms into national parks and wildlife refuges as long as they're allowed by state law.
Gov. Haley Barbour signed the bill last week removing the prohibition on guns in parks.
Concealed handguns remain illegal in many places in Mississippi, including polling places, courtrooms, bars, school or college campuses or most sporting events.