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A C-61 Limited Specialty license is California’s catch-all classification for construction trades that don’t fit neatly into any of the other 43 CSLB categories, authorizing a scope tied to your specific application rather than a fixed statewide list. Read our complete guide to what C-61 covers and when to apply.
Each C-61 sub-specialty has its own separate trade exam, so a C-61/D-49 (Tree Service) exam is entirely different from a C-61/D-21 (Industrial Equipment) exam — you must specify and test for the exact sub-specialty you intend to practice, since the license’s scope is limited to only that named specialty rather than a general catch-all authority.