SAN FRANCISCO -- Seeking to influence other states and the federal government, California air regulators passed sweeping auto emission standards Friday that include a mandate to have 1.4 million electric and hybrid vehicles on state roads by 2025.

The California Air Resources Board unanimously approved the new rules that require that one in seven of the new cars sold in the state in 2025 be an electric or other zero-emission vehicle.

The plan also mandates a 75 percent reduction in smog-forming pollutants by 2025, and a 50 percent reduction in greenhouse gas emissions .

WASHINGTON -- The Obama administration said Friday that will expand its signature foreclosure-prevention program to try to help those with heavy debt loads avoid losing their homes.

The Home Affordable Modification Program will also be extended through 2013.

The government will triple the financial incentives for private lenders to reduce the principal amount of mortgages for homeowners at risk of losing their homes. And for the first time, the government will offer incentives for principal reductions to government-controlled mortgage giants Fannie Mae and Freddie Mac.

NEW HAVEN, Conn. -- Joshua Komisarjevsky was formally sentenced to death Friday for the home invasion attack that left Jennifer Hawke-Petit and her daughters, Hayley and Micahela, dead in their Cheshire, Conn., home in the summer of 2007. Her husband, William Petit Jr., was the lone survivor.

Superior Court Judge Jon C. Blue set an execution date for July 20. An appeal is automatic and mandatory.

Dr. Petit met his wife in 1985 in a pediatric rotation at Pittsburgh's Children's Hospital when he was a third-year medical student and she was a new nurse.

CHICAGO -- Hull House, the Chicago social services organization founded more than 120 years ago by Nobel Peace Prize winner Jane Addams, closed Friday after running out of money.

Founded in 1889, Hull House was the best known of the 400 settlement houses in the United States in the early 1900s. The settlements were designed to provide services to immigrants and the poor while uplifting them through culture, education and recreation. Police probe bomb plot

ROY, Utah -- Police on Friday arrested two teens suspected of planning to bomb the roughly 1,500-student Roy High School, about 30 miles north of Salt Lake City, during an assembly.

A 16-year-old, along with Dallin Morgan, 18, were arrested at the school Wednesday after authorities were alerted to the plot by a fellow student who received ominous text messages from one of the suspects.