From the FAA. Canada is the same.
50' would be added to minimums for a single engine approach, over weight landing or certain equipment failures.
C. When the use of VNAV path guidance is incorporated into the approved training program and a VNAV path is used to fly eligible procedures with a DA(H), a slight momentary descent below the published DA(H) is considered to be acceptable while arresting the descent during the initiation of a missed approach which has been initiated at or above the specified DA(H).