Distress flares and smoke signals are not required on vessels operating on short runs. A "short run" is limited to __________. (small passenger vessel regulation)

Correct Answer: Option D — about 30 minutes away from the dock

46 CFR 117.200 defines a short run for small passenger vessels as a route where the vessel is no more than 30 minutes away from the dock. Vessels operating within these limited parameters are exempt from carrying certain distress flares and smoke signals due to their proximity to assistance.