About this chapter: Chapter 1 establishes the limits of applicability of this code and describes how the code is to be applied and enforced. Chapter 1 is in two parts: Part 1—Scope and Application (Sections R101—R102) and Part 2—Administration and Enforcement (Sections R103—R114). Section R101 identifies which buildings and structures come under its purview and references other I-Codes as applicable. Standards and codes are scoped to the extent referenced (see Section R102.4).
The one- and two-family dwelling code is intended to be adopted as a legally enforceable document, and it cannot be effective without adequate provisions for its administration and enforcement. The provisions of Chapter 1 establish the authority and duties of the building official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner.
Part 1 — Scope and Application
The provisions of this code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal and demolition of detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress and their accessory structures not more than three stories above grade plane in height.
Exception: The following shall be permitted to be constructed in accordance with this code where provided with a residential fire sprinkler system complying with the State Plumbing Code:
- Live/work units located in townhouses and complying with the requirements of Section 419 of the International Building Code.
- Owner-occupied lodging houses with five or fewer guestrooms.
- A care facility with five or fewer persons receiving custodial care within a dwelling unit.
- A care facility with five or fewer persons receiving medical care within a dwelling unit.
- A care facility for five or fewer persons receiving care that are within a single-family dwelling.
The purpose of this code is to establish minimum requirements to safeguard the public safety, health and general welfare through affordability, structural strength, means of egress facilities, stability, sanitation, light and ventilation, energy conservation and safety to life and property from fire and other hazards attributed to the built environment, and to provide safety to fire fighters and emergency responders during emergency operations.
The codes and standards referenced in this code shall be considered part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections R102.4.1 and R102.4.2.
Exception: Where enforcement of this code provision would violate the conditions of the listing of the equipment of appliance, the conditions of the listing and manufacturer's instructions shall apply.