California CodesBusiness and Professions Code - BPCDivision 3 — Professions and Vocations GenerallyChapter 9 — ContractorsArticle 4 — ClassificationsSection 7058
(a) A specialty contractor is a contractor whose operations involve the performance of construction work requiring special skill and whose principal contracting business involves the use of specialized building trades or crafts.
(b) A specialty contractor includes a contractor whose operations include the business of servicing or testing fire extinguishing systems.
(c) A specialty contractor includes a contractor whose operations are concerned with the installation and laying of carpets, linoleum, and resilient floor covering.
(d) A specialty contractor includes a contractor whose operations are concerned with preparing or removing roadway construction zones, lane closures, flagging, or traffic diversions on roadways, including, but not limited to, public streets, highways, or any public conveyance.
Notes
Defines a specialty contractor as one whose construction operations require special skill and whose principal business uses specialized building trades or crafts. Includes contractors servicing or testing fire-extinguishing systems, installing carpets, linoleum, or resilient floor covering, and preparing or removing roadway construction zones, lane closures, flagging, or traffic diversions.
Use as reference
Lexinter.net | California Code, Business and Professions Code - BPC § 7058 | https://laws.lexinter.net/codes/california/business-and-professions-code/division-3/chapter-9/article-4/section-7058