Chapter 10 — TRAPS AND INTERCEPTORS
1009.1 Where Required — 2025 California Plumbing Code
California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Plumbing Code (Title 24, Part 5) § 1009.1 · Effective January 1, 2026 · Official source: Building Standards Commission
Interceptors (clarifiers) (including grease, oil, sand, solid interceptors, etc.) shall be required
by the Authority Having Jurisdiction where they are necessary for the proper handling of liquid wastes containing grease, flammable wastes, sand, solids, acid or alkaline substances, or other ingredients harmful to the building drainage system, the public or private sewer, or to public or private sewage disposal. A list of acceptable interceptor standards is referenced in Table 1009.1.
TABLE 1009.1 APPROVED INTERCEPTORS (CLARIFIERS)
| APPLICATION | STANDARD |
|---|---|
Fats, Oil, Grease (FOG) |
ASME A112.14.3, ASME A112.14.4, ASME A112.14.6, CSA B481, ANSI/ PDI G-101, PDI G-102 |
| Solid Waste | IAPMO IGC 167 |
Non-petroleum Oil |
ASME A112.14.6, IAPMO PS 80, PDI G-102 |
Petroleum Oil |
ASTM D6104, IAPMO IGC 183, IAPMO IGC 325 |
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