Section 19517.
Cal. Public Resources Code - PRC § 19517.
in effectPhysical Composition
Particle Size: Cullet shall be one of two types below depending upon the requirements of the fiberglass manufacturer.
Screen Size
Coarse Cullet
Fine Cullet
+
¼″
0%
0%
+
12 Mesh
25% Minimum
0.5%
Maximum
–
200 Mesh
15% Maximum
15.0% Maximum
Color Distribution
Tolerance
(+
or
–
Type
Nominal Percentage Weight
Percentage Range)
Flint
0–100
+ or
–
3.0
Green
1–100
+ or
–
3.0
Amber
less than 25
+ or
–
3.0
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026