R.I. Gen. Laws § 23-27.3-115.4: Change in plot plan.

No lot or plot shall be changed, increased, or diminished in area from that shown on the official plot plan, as specified in § 23-27.3-113.6, unless a revised plan, not inconsistent with zoning or other municipal ordinances, indicating the changes accompanied by the necessary affidavit of owner or applicant shall have been filed and approved; except that the revised plot plan will not be required if the change is caused by reason of an official street opening, street widening, or other public improvement.