NCnationalcode.caNational Codes of Canada · 2025
Browse the codes
National Codes of Canada · 2025

Find any National Code, free.

Search every clause of Canada's National Codes — Building, Fire, and Plumbing. Fast, free, and no account needed.

Choose a code to search

Each code governs a different part of a building. Pick one to search its full text.

NBC

National Building Code

How buildings are designed and built — structure, fire-resistance of assemblies, accessibility, energy efficiency.

Search the Building Code
NFC

National Fire Code

Fire safety in buildings and facilities — prevention, sprinklers and alarms, life safety, hazardous materials.

Search the Fire Code
NPC

National Plumbing Code

Water systems — potable supply, drainage and venting, plumbing fixtures, sanitation requirements.

Search the Plumbing Code

Built for how you actually work

Each demo is a cropped, close-up view of the real control. Every card runs the same scripted interaction: the cursor travels to the control, clicks it, the control responds, then the result appears and stays.

9.24.2.4…fire separations and width of exits…
3.4.3.2…minimum width of exit stairs in a fire compartment…
3.2.2.18…fire resistance and width of protected openings…

Full-text search

Type any words in any order. Every matching term is highlighted and the closest clauses come first.

Part 3 ✕
Part
Part 1Part 2 Part 3 Part 4Part 9
3.4.3.2Exit stair width… (Part 3)
3.4.4.3…exit stair enclosure… (Part 3)
3.4.5.4…stair travel and exit width… (Part 3)

Filter by part & section

Click the funnel, pick a part from the list, and the scope is applied — “Part 3 ✕” — with the results narrowed to that part.

Suggestion: Part 9
9.36.2.6Thermal resistance of assemblies above grade…
9.36.2.9Effective thermal resistance of building assemblies…
9.36.3.1Design of thermal insulation for resistance…

Smart filter suggestions

Type what you need in plain words. The app proposes the most likely part — one click scopes the search.

3.2.2.18. Automatic Sprinkler System Required
(1) A sprinkler system conforming to Articles 3.2.4.7., 3.2.4.8. and 3.2.5.12. shall be installed throughout a building regulated by 3.2.2.20.
⧉Cross-references
3.2.4.7 3.2.4.8 3.2.5.12 3.2.2.20
3.2.4.7. — Design and construction of automatic sprinkler systems…

Cross-references

Click any red reference and the drawer slides in, opening a tab for that clause.

OBC · Canada 2025 A+
3.2.2.18. Automatic Sprinkler System Required

(1) Where a sprinkler system is required, it shall be designed, installed and maintained in conformance with this Part.

Dark & light theme

One click on the moon flips the whole reading view. Your choice is remembered on this device.

3.2.2.18.Automatic sprinkler systems
3.1.9.1.Firestops and fire separations
5.2.3.6.Portable extinguishers
★ Bookmarks
3.2.2.18. Automatic sprinkler systems
3.1.9.1. Firestops and fire separations
5.2.3.6. Portable extinguishers
✓ Saved on this device · no account

Bookmarks

Star a clause as you read, then open the star in the header to get your saved list back.

⧉Cross-references
3.2.4.73.2.4.8 3.2.5.123.2.2.20
3.2.4.7. — Design and construction of automatic sprinkler systems…
3.2.4.7. Design and construction of automatic sprinkler systems…
3.2.4.8. Water supply for automatic sprinkler systems…
3.2.5.12. Sprinklers in storage garages…
3.2.2.20. Buildings of combustible construction…

Two ways to read references

The bars icon switches the drawer between tabs — one clause at a time — and a single scrolling page.

⧉Cross-references
3.2.4.73.2.4.83.2.5.12
3.2.4.7. — Design and construction of automatic sprinkler systems…

Expand for long clauses

Click expand and the drawer grows to cover most of the view — full width for reading long clauses without scrolling sideways.

OBC · Canada 2025 A+
3.2.2.18. Automatic Sprinkler System Required

(1) Where a sprinkler system is required, it shall be designed, installed and maintained in conformance with this Part.

Adjustable text size

Tap A+ to cycle the reading text through three sizes. Your setting is kept on this device.

All of it runs in your browser — no account, nothing to install.

An independent, free reference tool for the National Codes of Canada.

Free · No account Fast full-text search 2025 Editions

Need the official, authoritative version?

This site is a free, independent search tool. For the official, legally authoritative text of each code, download it from the National Research Council of Canada.

National Building Code

Official NBC 2025 publication from the NRC.

Official NBC source

National Fire Code

Official NFC 2025 publication from the NRC.

Official NFC source

National Plumbing Code

Official NPC 2025 publication from the NRC.

Official NPC source
Disclaimer. This website is an independent, free reference tool. It is not an official version of the National Codes of Canada 2025, and is not affiliated with, endorsed by, or sponsored by the National Research Council of Canada. The code text is reproduced for non-commercial reference purposes in accordance with the NRC's copyright policy; Crown copyright is acknowledged. For the official, authoritative text, always refer to the National Research Council of Canada's publications linked above.