The last reason why power distribution systems are changing is because OEMs are motivated to make vehicles safer by incorporating enhanced vehicle intelligence for unrivaled driver assistance technology. Many OEMs are racing to innovate their vehicles beyond Society of Automotive Engineers Level 2 and the few Level 3 vehicles we have today to enable self-driving vehicles. The safety principles needed for Level 3 power distribution and beyond must exercise design practices such as redundant input supplies, intelligent load management when one supply fails, and freedom from interference to isolate faults in a system. These safety principles are extensively defined in the ISO26262 and VDA450 standards.