§ 301. Regulations by superintendent. The superintendent shall have
the power to prescribe and from time to time withdraw or amend, in
writing, regulations, not inconsistent with the provisions of this
chapter:

(a) governing the duties assigned to the members of the staff of the
department;

(b) effectuating any power, given to him under the provisions of this
chapter to prescribe forms or otherwise make regulations;

(c) interpreting the provisions of this chapter; and

(d) governing the procedures to be followed in the practice of the
department.