Introduction to Part 4
National Building Code (NBC) 2016 Part 4 deals with **Fire and Life Safety**. It is the most critical document for architects in India, governing everything from exit widths to fire hydrant locations. Ensuring 100% compliance is not just a legal requirement but a moral imperative.
Key Compliance Figures
- Min Fire Exit Width 1.25m
- Max Travel Distance 30.0m
- Fire Tank (High-rise) 200k L+
1. Occupancy Classification
Before applying any rules, you must correctly identify your occupancy. NBC Part 4 classifies buildings from **Group A (Residential)** to **Group J (Hazardous)**.
Group A: Residential
Includes hotels, flats, and private dwellings.
Group E: Business
Offices, banks, and professional establishments.
CRITICAL VIOLATION ALERT
"Failing to provide two separate fire exits in buildings exceeding 15m in height is a non-compoundable offense under most municipal bylaws."
2. The 30-Meter Rule
For non-sprinklered buildings, the maximum distance any occupant should travel to reach a fire exit is 30m. In NiyamX, you can use our **Travel Distance Mapper** to verify this across your entire floor plan in seconds.