Cal. Health and Safety Code § 25230.10

(a) For purposes of this section, “resizing” means minimal cutting, breaking, or sawing, but does not include planing, grinding, drilling, chipping, sanding, shredding, mulching, or other mechanical handling or any other treatment. (b) Except as provided in subdivisions (c) and (d), treatment, as defined in Section 25123.5, of treated wood waste managed in accordance with the alternative management standards of this article is prohibited. (c) Resizing is exempt from the permitting requirements of this chapter when resized to facilitate transport or reuse and the following requirements are met: (1) The treated wood waste is handled in a manner that prevents the uncontrolled release of hazardous constituents to the environment. (2) If size reduction of the treated wood waste results in sawdust, particles, or other material smaller than one cubic inch, the material is captured and managed as treated wood waste. (d) Sorting and segregating are both exempt from the hazardous waste permitting requirements of this chapter. The treated wood waste shall be handled in a manner that prevents the uncontrolled release of hazardous constituents to the environment. (e) An employer resizing, sorting, or segregating treated wood waste shall comply with the employee training requirements of Section 25230.12 for all applicable employees.