When anyone voluntarily deposits his/her Merchant Mariner Credential with a Coast Guard investigating officer, which of the following is TRUE?

Correct Answer: Option A — it may be for reasons of mental or physical incompetence

46 CFR 5.01-25 allows a mariner to voluntarily deposit their Merchant Mariner Credential with the Coast Guard. This action is often taken when a mariner recognizes they are no longer physically or mentally fit to perform the duties authorized by their credential, thereby avoiding formal suspension and revocation proceedings.