New Jersey Transit is still far from reaching a Dec. 31 deadline to install a federally mandated safety system on its trains and tracks.

NJ Transit's report for the first quarter of 2018 shows the positive train control system has been installed in 35 of 440 locomotives in its fleet. That's the same number reported at the end of 2017.

The agency also reports 37 of 124 radio towers are fully equipped, two more than at the end of 2017. 

The report also states that only 172 out of 1,100 employees are trained on how to use the safety system.

The federal government required railroads to install the system after a 2008 commuter rail crash in California that killed 25 people. It extended the initial December 2015 deadline three years.

There were more calls for positive train control after a deadly train crash in Hoboken in 2016. A woman was killed and over 100 people were injured after a NJ Transit train crashed into Hoboken Terminal. The National Transportation Safety Board ruled that the safety system could have prevented that incident.

The agency could win another deadline extension to install the system.

NJ Transit is the nation's third-largest transit system.