


Domain 1: Administration and Legal Aspects
This section focuses on the scope of the code, the authority of the inspector, and the legal processes required to enforce standards.
Code Application and Scope: Determining which structures are subject to the code and identifying existing vs. new construction requirements.
Duties and Powers of the Code Official: Understanding the right of entry, identification protocols, and the authority to issue notices or orders.
Permits and Inspections: Recognizing when permits are required for repairs and the process for conducting follow-up inspections.
Violations and Legal Recourse: Detailed knowledge of "Notice of Violation" procedures, prosecution of localized infractions, and the appeals process (Board of Appeals).
Unsafe Structures and Equipment: Criteria for declaring a structure unfit for human occupancy and the legal requirements for posting "Vacant" or "Condemned" placards.
Domain 2: General Structure and Exterior Premises
The exterior of a property is the first line of defense against decay and a primary focus for neighborhood blight prevention.
Exterior Property Areas: Maintenance of sanitation, grading, drainage, and the prevention of weed overgrowth or rodent infestation.
Structural Surface Maintenance: Requirements for protective treatment (paint/sealing), street numbers (address visibility), and the integrity of foundations and walls.
Roofing and Drainage: Inspecting roof coverings, flashing, chimneys, and ensuring that gutters and downspouts do not create a public nuisance.
Decorative Features and Overhangs: Assessing the safety of cornices, belt courses, shutters, and signs.
Stairs, Porches, and Balconies: Structural stability of elevated walking surfaces and the requirement for handrails and guardrails.
Windows and Doors: Ensuring glazing is free of cracks, frames are weather-tight, and insect screens are provided where required.
Domain 3: Interior Structure and Space Requirements
This domain ensures that the internal living environment is safe, sanitary, and structurally sound for occupants.
General Interior Maintenance: Ensuring interior surfaces (floors, walls, ceilings) are maintained in a clean and sanitary condition.
Space and Occupancy Standards:
Privacy: Requirements for bathroom and bedroom privacy.
Minimum Area: Square footage requirements for habitable rooms and bedrooms based on the number of occupants.
Ceiling Heights: Minimum clearances for habitable spaces and hallways.
Light and Ventilation:
Natural and artificial light requirements for different room types.
Mechanical ventilation requirements for bathrooms and kitchens.
Sanitation: Responsibility of the occupant vs. the owner regarding trash storage and disposal.
Domain 4: Plumbing, Mechanical, and Electrical Systems
A housing inspector must verify that the "bones" of the house—water, heat, and power—are functioning without posing a hazard.
Plumbing Facilities and Fixtures:
Required facilities (bathtub/shower, water closet, lavatory, kitchen sink).
Water system connections and the prevention of contamination (backflow).
Proper maintenance of water heating equipment (temperature and pressure relief valves).
Mechanical and Heating Facilities:
Heat Supply: Minimum temperature requirements for habitable rooms during specific months.
Ventilation: Proper exhausting of combustion gases and maintenance of fuel-burning appliances.
Electrical Facilities:
Minimum service requirements (amperage).
Receptacle distribution and the requirement for Ground Fault Circuit Interrupter (GFCI) protection in specific areas.
Safe use of extension cords and elimination of "visible wiring" hazards.
Domain 5: Fire and Life Safety
This is the most critical domain, focusing on the immediate protection of life in the event of an emergency.
Means of Egress: Ensuring exits are unobstructed, doors are easily openable from the inside without special keys/effort, and emergency escape openings (egress windows) are functional in sleeping rooms.
Fire-Resistance Ratings: Maintenance of firewalls, fire doors, and smoke barriers.
Fire Protection Systems:
Smoke Alarms: Installation locations (inside bedrooms, outside sleeping areas, and on every level) and power source requirements.
Carbon Monoxide Alarms: Requirements for homes with fuel-fired appliances or attached garages.