2 CAR § 54-404 – Clearance under buildings

(a) All soil within twelve inches (12”) of the bottom edge of floor joists or within five inches (5”) of subsills must be removed.
(b) Note.
1. (1) Scuttle holes, fourteen inches (14”) high and sixteen inches (16”) wide, must be provided under:
  1. (A) Drop sills;
  2. (B) Plumbing;
  3. (C) Air ducts; or
  4. (D) Any other similar obstructions.
2. (2) All areas under the building must be made accessible for complete inspection.