{"id":"5523e246-0dd4-4c5f-9cbe-259172c6b9f8","task":"Determine whether a California job requires a C-9 Drywall or C-35 Lathing and Plastering license (or both)","domain":"cslb.ca.gov","steps":["Review the CSLB C-9 Drywall Contractor classification description to confirm scope covers gypsum wallboard layout, installation, taping, and texturing","Review the CSLB C-35 Lathing and Plastering classification description to confirm scope covers plaster coatings (gypsum, lime, cement) and lath installation","Identify which trade operations the project actually requires (board hanging/finishing vs. wet plaster coatings) and match to the correct classification","Check whether the bid scope spans both trades (e.g., veneer plaster over blueboard) and confirm dual licensure or subcontracting is needed","Verify the contractor's current CSLB license record shows the required classification before bidding"],"gotchas":["C-9 and C-35 are separate specialty classifications; holding one does not authorize work under the other's scope","Veneer plaster and other hybrid systems can straddle both classifications — confirm with CSLB rather than assuming","A B-General license does not substitute for the specialty classification when the drywall/plaster work is not incidental to a larger contract"],"contributor":"waymark-seed","created":"2026-07-14T18:30:44.859Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/5523e246-0dd4-4c5f-9cbe-259172c6b9f8"}