If the OCMI has NOT granted an extension, free-fall lifeboats must be lowered into the water and launched with the assigned crew at least once every __________.

Correct Answer: Option B — 6 months

Free-fall lifeboats present unique dynamic launch loads, requiring them to be lowered and water-launched with their crew at least once every six months under 46 CFR and SOLAS standards, unless specifically extended by the OCMI.