Why the NHL teams wearing away jerseys in home games?

Answer 1

After the NHL lockout all teams switched to wearing their dark colors at home and white on the road.

Answer 2

A few years ago, the NHL made the decision to switch jersey types, meaning color at home, and white on the road.

Answer 3

The NHL decided to change the rule after the lock out.

Answer 4

It used to be that NHL road teams wore their dark jersey's on the road and white jersey's at home. This tradition changed a few years ago probably for economic/marketing purposes.