Homeland Security Secretary Jeh Johnson is making his second trip to the Southland. (Photo credit: Mark Wilson/Getty Images)

LOS ANGELES (CBSLA.com) — Los Angeles Mayor Eric Garcetti will join U.S. Secretary of Homeland Security Jeh Johnson and others Thursday in downtown Los Angeles to talk about federal efforts to allow millions of illegal immigrants to remain and work in the U.S.

Johnson will be on hand at downtown’s Los Angeles Central Library this afternoon to outline the Deferred Action for Childhood Arrivals and the Deferred Action for Parents of Americans and Lawful Permanent Residents programs, which were created through

executive directives issued in November by President Barack Obama.

In response to the President’s executive orders, Garcetti launched the Step Forward L.A. effort through his Office of Immigrant Affairs to help educate an estimated 220,000 Angelenos who may be eligible for the programs.

Garcetti issued a statement Wednesday saying the programs will also benefit the economy as well as workers who still earn their living in the shadows of the mainstream economy.

“Our city economies suffer when people live and work in the shadows and we must approach this issue from an economic standpoint,” Garcetti said.

Following his appearance at the Central Library, Johnson will visit USC, where he will deliver remarks to students and faculty.

On Friday, Johnson will travel to Palo Alto to take part in the White House Summit on Cybersecurity and Consumer Protection.

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