California Codes, Business and Professions Code - BPC, Division 3 — Professions and Vocations Generally, Chapter 14 — Structural Pest Control Operators, Article 1 — General Provisions, Section 8504.1
“Pesticide” includes any of the following:
(a) Any spray adjuvant.
(b) Any substance, or mixture of substances, which is intended to be used for preventing, destroying, repelling, or mitigating any pest or organism.
Notes
Defines “pesticide” to include any spray adjuvant and any substance or mixture intended to prevent, destroy, repel, or mitigate a pest or organism. The definition expressly covers those two categories and does not itself prescribe application methods, licensing requirements, concentration limits, registration procedures, deadlines, fees, penalties, or exemptions for pesticide use.
Use as reference
Lexinter.net | California Code, Business and Professions Code - BPC § 8504.1 | https://laws.lexinter.net/codes/california/business-and-professions-code/division-3/chapter-14/article-1/section-8504-1