10-11 GAS SHUT-OFF DEVICES.
Danville Zoning Code · 2026-07 edition · updated 2026-07-09 · Danville
10-11.1 Definitions. ¶
For the purpose of this section, certain terms shall be defined as follows:
- a. Downstream of gas utility meter. Refers to all customer owned gas piping.
b. Residential building. Any single-family dwelling, duplex, multi-family dwelling, apartment building, condominium building, townhouse building, lodging house, congregate residence, hotel, or motel.
c. Seismic gas shut-off device. A system consisting of a seismic sensing means and actuating means designed to actuate automatically a companion gas shut-off means installed in a gas piping system in order to shut-off the gas downstream of the location of the gas shut-off means in the event of a severe seismic disturbance. The system may consist of separable components or may incorporate all functions in a single body. The device shall be certified by the State Architect and the operational and functional design of the device shall meet or exceed the device certified by the Office of the State Architect. The determination of whether the operational and functional design of the device is at least equal to the device certified by the State Architect may be made by one of the following: the Independent Laboratory of the International Approval Services (IAS), Underwriter's Laboratory (UL), International Association of Plumbing and Mechanical Officials (IAPMO), or other recognized listing and testing agency.
d. Excess flow gas shut-off device. Those valves or devices that are not actuated by motion, but are activated by significant gas leaks or over-pressure surges, which can occur when pipes rupture inside the structure. The design of the device shall provide a proven method to provide automatically for expedient and safe gas shut-off in an emergency. The design of the device shall provide a capability for ease of consumer or owner resetting in a safe manner. The device shall be certified by the State Architect or the operational and functional design of the device shall meet or exceed the device certified by the Office of the State Architect. The determination of whether the operational and functional design if the device is at least equal to the device certified by the State Architect may be made by one of the following: the International Association of Plumbing and Mechanical Officials (IAPMO), the Independent Laboratory of the International Approval Services (IAS), Underwriter's Laboratory (UL), or other recognized listing and testing agency.
e. Upstream of gas utility meter. All gas piping installed by the utility up to and including the meter and the utility's bypass tee at the connection to the customer owned piping.
f. Gas shut-off device. As used in this section, shall refer to either a seismic gas shut-off device or excess flow gas shutoff device.
(Ord. 07-02, § 1)
10-11.2 Scope. ¶
a. The following devices shall be installed at the following locations in the buildings specified in subsection b.: An approved seismic gas shut-off device (motion sensitive) or an approved excess flow gas shut-off device (non-motion sensitive) shall be installed downstream of the gas utility meter at the beginning of each rigid gas piping system that serves any of the buildings specified in subsection b.
b. The devices specified in subsection a. shall be installed in the following buildings and structures:
In any new building construction (commercial, industrial, or residential) containing fuel gas piping for which a building permit is first issued on or after the effective date of this section.
In any existing residential building that is altered or added to and the following conditions are met:
(a) The building has fuel gas piping supplying the existing building or the addition to the building;
(b) A building permit for the work is first issued on or after the effective date of this section; and
(c) The value of the alteration or addition is more than ten thousand ($10,000) dollars.
- In any existing commercial or industrial building that is altered or added to and the following conditions are met:
(a) The building has fuel gas piping supplying the existing building or the addition to the building;
(b) A building permit for the work is first issued on or after the effective date of this section; and
(c) The value of the alteration or addition is more than ten thousand ($10,000) dollars.
(Ord. 07-02, § 1)
10-11.3 Exceptions.
a. Gas shut-off devices are not required to be installed downstream of the gas utility meter where gas shut-off devices have been installed by the gas utility or a contractor authorized by the gas utility upstream of the gas utility meter and downstream of the meter service regulator and the installations are in accordance with this section and with the manufacturer's specifications.
b. Gas shut-off devices installed on a building before the effective date of this section are exempt from the requirements of this section provided they remain installed on the building or structure and are maintained for the life of the building or structure.
c. Gas shut-off devices installed on a gas distribution system owned or operated by a public utility are not subject to the requirements of this section pursuant to Health and Safety Code Section 19201(a).
(Ord. 07-02, § 1)
10-11.4 General requirements. ¶
Gas shut-off devices installed either in compliance with this chapter or voluntarily, with a building permit issued on or after the effective date of this section, shall comply with all of the following requirements:
a. Be installed by a contractor licensed in the appropriate classification by the State of California and in accordance with the manufacturer's instructions.
b. In the case of seismic gas shut-off devices (motion sensitive) such devices must be mounted rigidly to the exterior of the building or structure containing the fuel gas piping. This requirement need not apply if the Building Division determines that the seismic gas shut-off device (motion sensitive) has been tested and listed for an alternate method of installation.
c. In the case of seismic gas shut-off devices (motion sensitive) only, be certified by the State Architect and be listed by an approved listing and testing agency such as IAPMO, IAS, UL or the Office of the State Architect. In the case of the excess flow gas shut-off device (non-motion sensitive) only, be certified by the State Architect or be listed by an approved listing and testing agency such as IAPMO, IAS, UL or the Office of the State Architect.
d. Have a thirty (30) year warranty which warrants that the valve or device is free from defects and will continue to operate properly for thirty (30) years from the date of installation.
e. Where gas shut-off devices are installed voluntarily or as required by this section, they shall be maintained for the life of the building or structure or be replaced with a valve or device complying with the requirements of this section.
(Ord. 07-02, § 1)
10-11.5 List of approved valves and devices. ¶
The Building Division shall maintain a list of gas shut-off devices which meet or exceed the requirements of devices certified by the Office of the State Architect for installation in the State of California and which comply with the standards and criteria set forth in Health and Safety Code Section 19180.
(Ord. 07-02, § 1)
10-11.6 Enforcing agency. ¶
The Building Division shall administer and enforce the provisions of this section.
(Ord. 07-02, § 1)
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- Chapter I
- Chapter II
- Chapter III
- Chapter IV
- Chapter V
- Part 1 — GENERAL
- Part 2 — CARDROOM LICENSES
- Part 3 — CARDROOM RESTRICTIONS
- Part 5 — SUSPENSION, REVOCATION, CHANGE AND VARIANCE
- Part 1
- Part 2
- Part 3
- Part 4
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▸ Part 1
Overview- 5-8 MASSAGE SERVICES.
- 5-9 SIDEWALK VENDORS.
- Chapter VI
- Chapter VII
- Chapter VIII
- Chapter IX
-
▸ Chapter X
Overview- 10-1 BUILDING CODE
- 10-2 RESIDENTIAL CODE
- 10-3 ELECTRICAL CODE
- 10-4 MECHANICAL CODE
- 10-5 PLUMBING CODE
- 10-6 FIRE CODE
- 10-7 GREEN BUILDING STANDARDS CODE.
- 10-13 ADMINISTRATIVE CODE
- 10-14 ENERGY CODE
- 10-15 REFERENCED STANDARDS CODE
- 10-18 HISTORICAL BUILDING CODE
- 10-19 EXISTING BUILDING CODE
- 10-2 RESIDENTIAL CODE.
- 10-3 ELECTRICAL CODE.
- 10-4 MECHANICAL CODE.
- 10-5 PLUMBING CODE.
- 10-6 FIRE CODE.
- 10-7 GREEN BUILDING STANDARDS CODE.
- 10-8 VERY HIGH FIRE HAZARD SEVERITY ZONE.
- 10-9 POST-DISASTER PLACARDS.
- 10-10 CONSTRUCTION AND DEMOLITION DEBRIS RECYCLING.
- 10-11 GAS SHUT-OFF DEVICES.
- 10-12 SMALL RESIDENTIAL ROOFTOP SOLAR SYSTEMS.
- 10-13 ADMINISTRATIVE CODE.
- 10-14 ENERGY CODE.
- 10-15 REFERENCED STANDARDS CODE.
- 10-16 RECORDING NOTICE OF NON-COMPLIANCE.
- 10-17 ELECTRIC VEHICLE CHARGING STATIONS.
- 10-18 HISTORICAL BUILDING CODE.
- 10-19 EXISTING BUILDING CODE.
- 10-20 CALIFORNIA WILD-URBAN INTERFACE CODE.
- Chapter XI
- Chapter XII
- Chapter XIII
- Chapter XIV
- Chapter XV
- Chapter XVI
- Chapter XVII
- Chapter XVIII
- Chapter XIX
- Chapter XX
- Chapter XXXI
- Division 1 — FORM AND CONTENTS
- Division 2 — SUPPLEMENTARY DOCUMENTS
- Division 3 — CHECKING
- Division 4 — APPROVAL
- Division 1
- Division 3
- Division 4
- Division 1 — INTRODUCTION
- Division 2 — SPECIFIC USES AND DEFINITIONS
- Division 3 — DEVELOPMENT STANDARDS
- Division 4 — PARKING STANDARDS
- Division 5 — DEVELOPMENT PLAN REVIEW PROCEDURES
- Division 1 — GENERAL
- Division 2 — REQUIREMENTS AND STANDARDS
- Division 3 — CREDIT; EXEMPTIONS
- Division 4 — DISPOSITION OF FEES AND LAND
- Division 5 — PROCEDURES
- Division 1 — GENERAL
- Division 3 — ENFORCEMENT REGULATIONS
- Division 1 — NONRESIDENTIAL CONSTRUCTION
- Division 2 — RESIDENTIAL CONSTRUCTION
- Division 1 — GENERAL PROVISIONS
- Division 2 — APPLICATIONS
- Division 3 — ADMINISTRATION
- Division 4 — PROVISIONS FOR FLOOD HAZARD REDUCTION
- Division 5 — FLOOD HAZARD VARIANCE PROCEDURES
- Division 2
- Division 5
- Division 2 — REQUIREMENTS AND STANDARDS
- Division 4
- Division 5
- Division 2
- Division 1
- Division 2