International Building Code Section 3309

International Building Code 3309.1

Where required. All structures under construction,
alteration or demolition shall be provided with not less than one
approved portable fire extinguisher in accordance with Section
906 and sized for not less than ordinary hazard as follows:
1. At each stairway on all floor levels where combustible
materials have accumulated.
2. In every storage and construction shed.
3. Additional portable fire extinguishers shall be provided
where special hazards exist, such as the storage and use
of flammable and combustible liquids.

International Building Code 3309.2

Fire hazards. The provisions of this code and the International
Fire Code shall be strictly observed to safeguard
against all fire hazards attendant upon construction operations.