The approved route is Enbridge's preferred route (APR) and is shown in black in the map below. This segment is the option furthest away from Long Lake on this map. The Line 3 route needs 29 permits.
See: Governor's 6/28/18 statement on Enbridge Line 3
More details will be known once the PUC issues a written statement.
It is worth noting that the PUC went against the recommendation of the Minnesota Administrative Law Judge who after reviewing all the (numerous) submissions, recommended that the old Line 3, which takes a direct route to Superior, be removed and that the new Line 3 be put in its place.
State of Minnesota Administrative Hearings Report, Enbridge Line 3 pdf
For more background information, listen to several excellent Minnesota Public Radio reports at:
MPR News, Rivers of Oil