"Canopus" remained in Holy Loch until November 1975. During this time, "Canopus" was instrumental in establishing several new maintenance concepts while completing, on schedule, every submarine refit during the 67 months at Holy Loch. During the last year at Holy Loch, "Canopus" received numerous awards including the Ney Award for the best large mess afloat, the second consecutive Battle Efficiency "E", the CINCLANTFLT Golden Anchor Award for personnel retention, and the Navy Unit Commendation for her role in the first FBM Submarine Extended Refit Period.