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Appendix A — GENERAL REQUIREMENTS

Section A104 — IGNITION SOURCE CONTROL

2025 California Wildland-Urban Interface Code (Title 24, Part 7.5) · 2025 edition · updated 2026-07-27 · California

A104.1 General.

Ignition sources shall be controlled in accordance with Sections A104.2 through A104.10.

A104.2 Objective.

Regulations in this section are intended to provide the minimum requirements to prevent the occurrence of wildfires.

A104.3 Clearance from ignition sources.

Clearance between ignition sources and grass, brush or other combustible materials shall be maintained at not less than 30 feet (9144 mm).

A104.4 Smoking.

Where required by the code official, signs shall be posted stating NO SMOKING. Persons shall not smoke within 15 feet (4572 mm) of combustible materials or nonfire-smart vegetation.

Exception: Places of habitation or in the boundaries of established smoking areas or campsites as designated by the code official.

A104.5 Equipment and devices generating heat, sparks or open flames.

Equipment and devices generating heat, sparks or open flames capable of igniting nearby combustibles shall not be used in wildland-urban interface areas without a permit from the code official.

Exception: Use of approved equipment within inhabited premises or designated campsites that are not less than 30 feet (9144 mm) from grass-, grain-, brush- or forest-covered areas.

A104.6 Fireworks.

Fireworks shall not be used or possessed in wildland-urban interface areas.

Exception: Fireworks allowed by the code official under permit in accordance with the California Fire Code where not prohibited by applicable local or state laws, ordinances and regulations.

A104.6.1 Authority to seize. The code official is authorized to seize, take, remove or cause to be removed fireworks in violation of this section.

A104.7 Outdoor fires.

Outdoor fires in wildland-urban interface areas shall comply with Sections A104.7.1 through A104.7.3.

A104.7.1 General. Persons shall not build, ignite or maintain any outdoor fire of any kind for any purpose in or on any wildland- urban interface area, except by the authority of a written permit from the code official.

Exception: Outdoor fires within inhabited premises or designated campsites where such fires are in a permanent barbecue, portable barbecue, outdoor fireplace, incinerator or grill and are not less than 30 feet (9144 mm) from any combustible material or nonfire-smart vegetation.

A104.7.2 Permits. Permits shall incorporate such terms and conditions that will reasonably safeguard public safety and property. Outdoor fires shall not be built, ignited or maintained in or on hazardous fire areas under any of the following conditions:

  1. When high winds are blowing.
  2. When a person 17 years old or over is not present at all times to watch and tend such fire.
  3. When a public announcement is made that open burning is prohibited.

A104.7.3 Restrictions. Persons shall not use a permanent barbecue, portable barbecue, outdoor fireplace or grill for the disposal of rubbish, trash or combustible waste material.

A104.8 Incinerators, outdoor fireplaces, permanent barbecues and grills.

Incinerators, outdoor fireplaces, permanent barbecues and grills shall not be built, installed or maintained in wildland-urban interface areas without approval of the code official.

A104.8.1 Maintenance. Incinerators, outdoor fireplaces, permanent barbecues and grills shall be maintained in good repair and in a safe condition at all times. Openings in such appliances shall be provided with an approved spark arrestor, screen or door.

Exception: Where approved by the code official, unprotected openings in barbecues and grills necessary for proper functioning.

A104.9 Reckless behavior.

The code official is authorized to stop any actions of a person or persons if the official determines that the action is reckless and could result in an ignition of fire or spread of fire.

A104.10 Planting vegetation under or adjacent to energized electrical lines.

Vegetation that, at maturity, would grow to within 10 feet (3048 mm) of the energized conductors shall not be planted under or adjacent to energized power lines.

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Contents — 2025 California Wildland-Urban Interface Code (Title 24, Part 7.5)

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