§134-7
(1) Is or has been under treatment or counseling for addiction to, abuse of, or dependence upon any dangerous, harmful, or detrimental drug, intoxicating compound as defined in section 712-1240, or intoxicating liquor;
(2) Has been acquitted of a crime on the grounds of mental disease, disorder, or defect pursuant to section 704-411; or
(3) Is or has been diagnosed as having a significant behavioral, emotional, or mental disorders as defined by the most current diagnostic manual of the American Psychiatric Association or for treatment for organic brain syndromes;
The doctor needs to give no clearance, they must disclose if any of the above applies, if none applies they (the Dr.) the need do nothing. So if any of that applies HPD must determine on this above.
Yes, you do need a doctor's, or more correctly, a medical clearance. You need to read the entirety of the statute:
(c) No person who:
(1) Is or has been under treatment or counseling for addiction to, abuse of, or dependence upon any dangerous, harmful, or detrimental drug, intoxicating compound as defined in section 712-1240, or intoxicating liquor;
(2) Has been acquitted of a crime on the grounds of mental disease, disorder, or defect pursuant to section 704-411; or
(3) Is or has been diagnosed as having a significant behavioral, emotional, or mental disorders as defined by the most current diagnostic manual of the American Psychiatric Association or for treatment for organic brain syndromes;
shall own, possess, or control any firearm or ammunition therefor,
unless the person has been medically documented to be no longer adversely affected by the addiction, abuse, dependence, mental disease, disorder, or defect. (d) No person who is less than twenty-five years old and has been adjudicated by the family court to have committed a felony, two or more crimes of violence, or an illegal sale of any drug shall own, possess or control any firearm or ammunition therefor.
(e) No minor who:
(1) Is or has been under treatment for addiction to any dangerous, harmful, or detrimental drug, intoxicating compound as defined in section 712-1240, or intoxicating liquor;
(2) Is a fugitive from justice; or
(3) Has been determined not to have been responsible for a criminal act or has been committed to any institution on account of a mental disease, disorder, or defect;
shall own, possess, or control any firearm or ammunition therefor,
unless the minor has been medically documented to be no longer adversely affected by the addiction, mental disease, disorder, or defect.