President Barack Obama is taking 23 executive actions aimed at curbing gun violence that don’t require congressional action, including measures to encourage schools to hire police officers, increase research on gun violence and improve efforts to prosecute gun crime.

He is also calling on lawmakers to reinstate a strengthened assault weapons ban and instate a 10 round magazine limit.

The executive actions are part of an overarching package assembled by a task force led by Vice President Joe Biden. The measures come a month after the mass shooting in Newtown, Ct., that killed 20 elementary school children.

Obama is directing the Centers for Disease Control to research gun violence and is seeking rules to ensure that law enforcement conducts background checks before returning seized firearms.

He intends to nominate Todd Jones as director of the Bureau of Alcohol, Tobacco, Firearms and Explosives. Jones is the agency’s acting director.