Los Angeles County Municipal Code Ch. 5 Exhaust Systems

Los Angeles County Municipal Code · 2026-09 edition · updated 2026-10-04 · Los Angeles County

Cite as: Los Angeles County Municipal Code Chapter 5 · Text as of 2026-10-04

501.1 - Applicability.¶

This Chapter includes requirements for environmental air ducts, product-conveying systems, and commercial hoods and kitchen ventilation. Part I addresses environmental air ducts and product-conveying systems. Part II addresses commercial hoods and kitchen ventilation. Ventilation systems installed to control occupational health hazards shall comply with the requirements of the County Health Officer as defined in Title 11 of the Los Angeles County Code.

(Ord. 2025-0050 § 7, 2025.)

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510.1.6 - Bracing and Supports.¶

Duct bracing and supports shall be of noncombustible material, securely attached to the structure, not less than the gauge required for grease-duct construction, and designed to carry gravity and lateral loads within the stress limitations of the Building Code. Bolts, screws, rivets, and other mechanical fasteners shall not penetrate duct walls.

(Ord. 2025-0050 § 8, 2025.)

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Los Angeles County Municipal Code

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