C-33 — Painting & Decorating

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What Is a C-33 License, and What Does It Let You Do?

A C-33 Painting and Decorating license lets you legally contract, bid, and get paid for surface-preparation and coating work anywhere in California — without teaming up under a general contractor and without a second trade license to “cover” the work. Under California Code of Regulations, Title 16, Section 832.33, a C-33 contractor “prepares by scraping, sandblasting or other means and applies … paints, papers, textures, fabrics, pigments, oils, turpentines, japans, driers, thinners, varnishes, shellacs, stains, fillers, waxes, adhesives, water and any other vehicles, mediums and materials which adhere by evaporation … to the surfaces of structures and the appurtenances thereto for purposes of decorating, protecting, fireproofing and waterproofing” (cited under Business and Professions Code §§ 7008 and 7059). In plain terms: if the job is stripping, prepping, and coating a surface — paint, stain, wallcovering, or a specialty finish, indoors or out — a C-33 covers it as a standalone classification.

Scope of Work: What a C-33 Actually Covers

The classification is broader than “painting” in the everyday sense. It reaches every step from surface prep through final coat, on nearly any substrate. Real-world jobs a C-33 contractor takes on solo include:

• Exterior repaint of a stucco or wood-sided home — pressure washing, scraping and sanding failed coatings, caulking and patching, priming bare substrate, then two finish coats.
• Interior repaint for a multi-unit turnover — patching nail holes and drywall dings, spot-priming stains, rolling and cutting-in walls, ceilings, and trim between tenants.
• Commercial wallcovering installation — hanging vinyl wallcovering or fabric-backed wallpaper in an office lobby or hotel corridor, including seam and pattern matching.
• Stain and clear-coat finishing — sanding, staining, and sealing exposed wood beams, siding, decks, or cabinetry to a specified sheen.
• Fireproofing and waterproofing coatings — applying intumescent or elastomeric coating systems to structural members or building envelopes per manufacturer spec.
• Lead-safe repaint of a pre-1978 structure — EPA RRP-compliant containment, paint removal, and recoating on older housing stock.

What it does not cover: structural drywall installation (that’s C-9), new wallboard/taping as a standalone scope, or projects that combine painting with two or more unrelated trades under one contract — that combination requires a B (General Building) license instead.

The C-33 Exam: What to Expect

Every applicant sits for two separate, closed-book, multiple-choice exams administered by CSLB’s testing vendor, PSI: the standard Law and Business exam (shared across all classifications) and the classification-specific C-33 trade exam. Per CSLB’s Examination FAQ, each exam is allotted 3½ hours, a calculator is provided for math-based questions, and there is no penalty for guessing. CSLB does not publicly publish the exact scored-question count or a fixed passing percentage for any classification — pass points are set by a psychometric standard-setting process using a panel of licensed contractors, and vary by exam form, so treat any third-party site quoting an exact “100 questions” or “70% to pass” figure as an unverified estimate, not an official CSLB number.

What CSLB does publish, in the official C-33 License Examination Study Guide, is the content outline and approximate weighting for the trade exam:

• Substrate Repair and Surface Preparation — 30% (identifying problems, scraping/sanding/wallpaper removal, patching, caulking, masking, paint removal, priming)
• Planning and Estimating — 28% (evaluating job sites, selecting tools/equipment/materials and colors, reading blueprints and specs, estimating cost for materials, labor, and equipment)
• Application of Paint, Wallcoverings, and Finishes — 21% (applying paint and wallcovering, waterproofing/sealant, staining and finishing wood, touch-ups and cleanup)
• Safety — 21% (tool/equipment safety, job-site and personnel safety, environmental safety, hazardous-materials handling, Cal/OSHA requirements)

(Source: CSLB “License Examination Study Guide — Painting and Decorating (C-33),” effective for exams scheduled on or after April 27, 2022, form 13E-33.)

Requirements to Qualify

• Experience: Four years of journey-level experience in painting and decorating within the last 10 years, verified by a qualifying individual who can attest to your work. Up to three of those four years can be substituted with education, registered apprenticeship, or technical training — but at least one year must be hands-on, practical experience.
• Application: File the Application for Original Contractor License with CSLB along with the $450 nonrefundable application fee (single classification). Once your application is approved, you schedule both exams directly through PSI; exam fees are paid to PSI separately, currently $51.43 per exam ($102.86 for both), not to CSLB.
• Bond: A $25,000 contractor’s bond (or equivalent cash deposit), required under Business and Professions Code §7071.6, filed before the license is issued.
• Workers’ compensation: C-33 is not on CSLB’s mandatory-coverage list (that list is limited to C-8, C-20, C-22, C-39, and C-61/D-49). A sole owner with no employees may file a Certification of Self-Exemption; the moment you hire anyone, that exemption is void and proof of workers’ comp coverage is due to CSLB within 90 days.
• Initial license fee: $200 (sole owner) or $350 (any other business type), paid after you pass both exams.

C-33 vs. Adjacent Classifications

C-33 vs. B (General Building): Choose C-33 when painting/coating is the entire scope of the contract. Choose B only when the same contract also includes framing, plumbing, electrical, or other unrelated trades as part of a structure built from the ground up or through — B requires at least two unrelated trades on one job; a paint-only contract, however large, stays under C-33.

C-33 vs. C-61/D-29 (Paperhanging): D-29 is a narrower limited-specialty license restricted to hanging wallpaper and wallcovering only. C-33 already includes everything D-29 covers, plus paint, stain, and coating work — most contractors who want to bid both wallcovering and paint jobs go straight to C-33 rather than holding D-29 separately.

C-33 vs. C-61/D-38 (Sand and Water Blasting): D-38 is limited to abrasive/water-blasting surface prep as a standalone service (e.g., blasting a tank or bridge for someone else to coat). C-33 covers blasting and prep and the coating application that follows — pick D-38 only if you strictly subcontract prep work and never apply the finish yourself.

Who Needs a C-33 License?

Typical C-33 holders include residential repaint crews, commercial painting contractors serving property managers and HOAs, apartment-turnover specialists, wallcovering installers working hotels and offices, and specialty-coating applicators doing fireproofing, waterproofing, or industrial finishes. Common clients: homeowners refreshing a single-family exterior, general contractors subcontracting the paint scope on a remodel, property management companies maintaining multi-unit portfolios, and commercial GCs needing an EPA RRP-certified crew for pre-1978 buildings.

C-33 Frequently Asked Questions

Can a C-33 contractor install wallpaper and vinyl wallcovering, or do I need a separate license?
Yes — wallcovering (papers and fabrics) is explicitly named in the Title 16 §832.33 scope, so a C-33 license covers it without a separate D-29 Paperhanging specialty.

Do I need a separate lead-paint certification to repaint older homes?
Yes. Working on pre-1978 residential or child-occupied buildings requires EPA RRP (Renovation, Repair, and Painting) firm certification and a certified renovator on-site — that’s a federal EPA credential, separate from and in addition to your CSLB C-33 license.

Can a C-33 contractor also do minor drywall patching?
Yes, patching and repair that’s incidental to surface prep (nail holes, small dings, caulking) falls within “Substrate Repair and Surface Preparation.” Installing new drywall sheets or taping/texturing a whole room as a standalone scope is C-9 Drywall’s territory.

How many questions are on the C-33 trade exam?
CSLB does not publicly disclose the exact scored-question count for the C-33 exam. What is confirmed is a 3½-hour time limit per exam and the four content areas with their approximate weightings listed above.

Is spray-painting equipment covered under the same license, or do I need a separate permit?
Using airless or HVLP spray equipment is a covered application method under C-33 — no separate CSLB license is needed. Some local air districts do require separate permits or VOC compliance for spray operations, so check your local Air Quality Management District rules.

Can I bid a job that includes both painting and light carpentry repair, like replacing a few rotten fascia boards?
Minor incidental repair directly tied to the coating scope (e.g., a small patch before painting) is generally acceptable under C-33; structural carpentry as a distinct scope pushes the job toward requiring a B license or a separate C-5 (Framing and Rough Carpentry) contractor.

What’s the difference between the C-33 trade exam and the Law and Business exam?
The Law and Business exam is identical for every CSLB classification and covers contract law, licensing law, business organization, taxes, and labor law. The C-33 trade exam is classification-specific and tests painting/decorating job knowledge only — you must pass both to get licensed.

Does a C-33 license expire, and do I need continuing education to renew it?
CSLB licenses renew every two years by fee (no exam or continuing-education requirement to renew, unlike some other states); you do need to keep your $25,000 bond and any required workers’ comp coverage active or the license goes delinquent.

Comprehensive exam prep for the CSLB C-33 Painting & Decorating classification. Includes study guide and practice exams.