JACKSON, Miss (AP) — Mississippi school districts can temporarily make their own rules for letting armed people with enhanced licenses onto school grounds.

The Mississippi Board of Education voted Thursday to approve a temporary rule that updates a 1990 internal policy that until now had prohibited anyone other than law enforcement from carrying guns on public school campuses.

The board could vote to make the rule permanent after a public comment period. The state’s department of education argued that the 1990 policy conflicted with the state’s 2011 enhanced conceal carry law.

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The department also argued that the old policy “predates any notable school shootings.”