California CSLB Shower and Bath Enclosure Systems Contractor D-20 / C-61 Attorney Fee Petition Mechanics: Tyler Odyssey Civil Complaint Date as Primary Welch Anchor, CSLB License Check (D-20 / C-61) as Secondary Anchor (THE ONLY D-20 Shower and Bath Enclosure Page in This Series — DISTINCT FROM D-8 Glazing Commercial Storefront — ONLY Page With ANSI Z97.1 Standard for Safety Glazing Materials Advisory [THE ONLY PAGE in the Fee-Petition-Mechanics Series With an ANSI Z97.1 Shower Enclosure Advisory — PURE KETCHUM] and ASTM C1048 Heat-Treated Flat Glass Advisory; AHJ Residential Building Permit CBC Chapter 24 as Second Institutional Anchor; Non-Safety Annealed Glass Panel Shower Occupant Laceration Personal Injury / Kind HS Heat-Strengthened Glass Certificate of Occupancy Withheld / Frameless Panel Undersize Shower Surround Structural Failure Flooding Three-Track Harm; Bus. & Prof. Code § 7031(b) Disgorgement), CLRA § 1780 Mandatory Attorney Fees

Statutory Framework: Bus. & Prof. Code § 7028, D-20 / C-61 Shower and Bath Enclosure Systems, ANSI Z97.1 Advisory, ASTM C1048 Advisory, AHJ Building Permit Advisory, § 7031(b) Disgorgement, and CLRA § 1780 Mandatory Attorney Fees

California Business and Professions Code § 7028 prohibits unlicensed contracting. The CSLB D-20 (Shower and Bath Enclosure Systems) limited specialty designation under C-61 authorizes: installation of frameless glass shower door systems using hinged pivot doors on U-channel floor track and wall-mounted hinges; installation of semi-frameless shower enclosure systems with aluminum top and bottom rails and frameless glass side panels; installation of sliding bypass shower enclosure doors on aluminum top rail and bottom track with tempered glass panels; installation of neo-angle corner shower enclosures with three panels and two hinged doors in an angled configuration; installation of framed and frameless tub-to-ceiling glass enclosure panels around standard bathtub alcoves; and removal and replacement of existing shower enclosures including disposal of old glass panels, channel, and hardware. D-20 does not cover: commercial storefront glazing, curtain wall, or structural glass facades (requires C-17 Glazing or D-8 Glazing); installation of shower pans, shower drains, or plumbing rough-in (requires C-36 Plumbing); tile or stone shower surround installation (requires C-54 Ceramic Tile or D-37 Specialty Tile); or shower waterproofing membrane installation on substrate surfaces (requires C-36 Plumbing or C-54 Tile). D-20 is distinct from D-8 because D-8 covers commercial-grade glass installations requiring structural engineering, while D-20 covers only the prefabricated shower and bath enclosure system installation in residential settings.

ANSI Z97.1 Standard for Safety Glazing Materials Used in Buildings (published by the American National Standards Institute) is a private standard — NOT a California statute, NOT California administrative code, NOT a federal regulation creating mandatory civil attorney fees. ANSI Z97.1 specifies: mandatory use of safety glazing materials (fully tempered glass or laminated safety glass) in all shower and bathtub hazardous locations as defined by this standard and incorporated by reference into California Building Code Section 2406.4; all safety glazing used in shower enclosures must be permanently labeled with the manufacturer's name or trademark, nominal thickness, ANSI Z97.1 certification mark, and the words "safety glazing"; minimum nominal thickness for frameless shower panels is 3/8 inch (9.5 mm) for panels over 9 square feet or exceeding 36 inches in height or width; minimum 1/4 inch (6.4 mm) for semi-frameless framed panels under 9 square feet; fully tempered glass (Type I) meets ANSI Z97.1 safety requirements for shower enclosures; laminated safety glass (Type II) with 0.030-inch polyvinyl butyral interlayer also meets requirements; annealed (untempered) flat glass, heat-strengthened glass, wire glass, and patterned glass that has not been treated or laminated to achieve safety glazing classification do NOT meet ANSI Z97.1 for shower hazardous locations — their use constitutes a per se violation of CBC Section 2406.4. PURE KETCHUM: ANSI Z97.1 is a private American National Standards Institute standard — it creates no private civil right of action and no mandatory attorney fee-shifting mechanism for persons harmed by unlicensed California D-20/C-61 shower enclosure contractors.

ASTM C1048 Standard Specification for Heat-Treated Flat Glass — Kind HS, Kind FT Coated and Uncoated Glass (published by ASTM International) is a private technical standard — NOT a California statute, NOT California administrative code, NOT a federal regulation. ASTM C1048 specifies: Kind FT (Fully Tempered) glass — minimum surface compression 10,000 psi or minimum edge compression 9,700 psi; minimum 4× the strength of annealed glass under uniform load; fragmentation test requires minimum 40 particles per 50 mm × 50 mm area when broken — fully tempered glass breaks into small, roughly equidimensional fragments with dull edges that significantly reduce laceration risk; Kind HS (Heat Strengthened) glass — minimum surface compression 3,500 psi, maximum 7,500 psi; minimum 2× the strength of annealed glass; fragmentation test is NOT required for Kind HS — when broken, Kind HS glass fractures into large, irregular shards similar to annealed glass with sharp, pointed edges that create the same laceration hazard as ordinary window glass; Kind HS is therefore NOT acceptable for shower enclosure hazardous locations under ANSI Z97.1 and CBC Section 2406.4; the difference between Kind FT and Kind HS is critical because manufacturers' glass pricing is similar and an unlicensed D-20 contractor may knowingly or unknowingly substitute Kind HS for required Kind FT glass — the product appears visually identical until it breaks. PURE KETCHUM: ASTM C1048 is a private ASTM International standard — it creates no private civil right of action and no mandatory attorney fee-shifting mechanism; violations generating injury or CBC inspection failure are recoverable as CLRA actual damages.

Three Unique Distinctions in the Fee-Petition-Mechanics Series

• THE ONLY PAGE IN THE FEE-PETITION-MECHANICS SERIES with ANSI Z97.1 STANDARD FOR SAFETY GLAZING MATERIALS USED IN BUILDINGS ADVISORY — private American National Standards Institute standard; fully tempered (Type I) or laminated (Type II) safety glass mandatory in all shower hazardous locations; permanent label required: manufacturer name, nominal thickness, ANSI Z97.1 certification mark, "safety glazing" designation; minimum 3/8-inch nominal thickness for frameless panels over 9 sq ft or exceeding 36 inches in height or width; annealed glass, wire glass, heat-strengthened glass, and unlabeled glass NOT acceptable; PURE KETCHUM — ANSI Z97.1 is a private American National Standards Institute standard, not a California statute, not California administrative code, creating no private civil right of action and no mandatory attorney fee-shifting mechanism; non-safety glazing in shower locations is recoverable as CLRA actual damages when the D-20 contractor is unlicensed: the ANSI Z97.1 advisory generates pre-complaint research hours: (a) confirming CSLB C-61/D-20 license status at contractors.ca.gov; (b) physically inspecting every glass panel in the shower enclosure for the required permanent safety glazing label — a 1-inch × 1-inch mark acid-etched, sandblasted, or ceramic-fired onto the glass surface near a corner; (c) if the permanent label is absent, retaining a glazing specialist or laboratory to assess glass type by spark testing or grinding spark characterization — annealed and heat-strengthened glass generate spark patterns distinct from fully tempered glass; (d) retaining a licensed glazing contractor to provide a written assessment of glass type, nominal thickness, and ANSI Z97.1 compliance for the entire enclosure; (e) reviewing AHJ building permit and final inspection records for the bathroom remodel to confirm whether safety glazing compliance was inspected.
• THE ONLY PAGE IN THE FEE-PETITION-MECHANICS SERIES with ASTM C1048 HEAT-TREATED FLAT GLASS KIND HS KIND FT ADVISORY — private ASTM International standard; Kind FT minimum 10,000 psi surface compression or 9,700 psi edge compression; minimum 4× annealed glass strength; minimum 40 particles per 50×50 mm area fragmentation requirement; Kind HS minimum 3,500 psi surface compression maximum 7,500 psi; minimum 2× annealed glass strength; NO fragmentation test for Kind HS; Kind HS breaks in large dangerous shards NOT small safe fragments; Kind HS NOT acceptable for shower hazardous locations under ANSI Z97.1 and CBC § 2406.4; products appear visually identical to Kind FT until broken; PURE KETCHUM — ASTM C1048 is a private ASTM International standard, not a California statute, not California administrative code, creating no private civil right of action; ASTM C1048 Kind HS violations generating AHJ inspection failure or personal injury are recoverable as CLRA actual damages; DISTINCT FROM ANSI Z97.1 advisory [ANSI Z97.1 specifies the safety glazing classification and labeling requirements for all hazardous locations including showers; ASTM C1048 specifies the physical and mechanical properties distinguishing fully tempered from heat-strengthened glass — the two standards work together to define both what is required (Z97.1) and how to verify it technically (C1048)]: the ASTM C1048 advisory generates technical documentation: (a) obtaining product purchase receipts, delivery invoices, or manufacturer product data sheets from the unlicensed contractor to identify the glass product specification; (b) requesting the glazing manufacturer's ASTM C1048 certification test reports for the specific glass product — confirming Kind FT classification with surface compression data; (c) if glass is installed without documentation, retaining a glazing laboratory to conduct surface stress measurement using scattered light polariscope (SCALP-5 method) to determine whether installed glass meets Kind FT surface compression minimum; (d) cross-referencing ASTM C1048 Kind HS fragmentation pattern with available broken glass evidence if personal injury has already occurred.
• THE ONLY page with NON-SAFETY ANNEALED GLASS FRAMELESS SHOWER PANEL OCCUPANT FALL LACERATION SEVERE PERSONAL INJURY / KIND HS HEAT-STRENGTHENED GLASS CBC § 2406.4 VIOLATION AHJ FINAL INSPECTION REJECTION CERTIFICATE OF OCCUPANCY WITHHELD 6-WEEK DELAY $8,400 REAL ESTATE TRANSACTION DAMAGE / FRAMELESS PANEL UNDERSIZED 1/4-INCH ON 40-INCH WIDTH WITHOUT FIXED LATERAL BRACE STRUCTURAL FAILURE SHOWER PAN OVERFLOW BATHROOM FLOODING $14,800 PROPERTY DAMAGE three-track harm — DISTINCT FROM D-8 Glazing [D-8 covers commercial storefront glazing, curtain wall, and structural glass facades; D-20 covers limited specialty residential shower and bath enclosure systems]: Track 1 — UNLICENSED D-20 CONTRACTOR INSTALLS STANDARD ANNEALED FLAT GLASS FRAMELESS SHOWER PANEL IN PLACE OF REQUIRED ANSI Z97.1 FULLY TEMPERED SAFETY GLASS — GLASS PANEL IS NOT LABELED — HOMEOWNER FALLS AGAINST SHOWER PANEL DURING SHOWERING → ANNEALED GLASS BREAKS INTO LARGE, JAGGED, RAZOR-EDGED SHARDS → HOMEOWNER SUFFERS SEVERE LACERATIONS TO ARM AND SHOULDER → EMERGENCY ROOM TREATMENT → NERVE DAMAGE → PERSONAL INJURY DAMAGES: Annealed glass is ordinary flat glass that has not been subjected to a heat-treating or tempering process — it breaks into large irregular shards with sharp, pointed edges that cause serious lacerations; fully tempered glass (ASTM C1048 Kind FT) breaks into small, roughly equidimensional fragments approximately 1/8 to 1/4 inch in size with dull, curved edges that significantly reduce laceration severity; building codes and ANSI Z97.1 mandate safety glazing in shower hazardous locations precisely because of the documented injury history from annealed glass in shower enclosures; the difference is invisible to the consumer because annealed and tempered glass look identical — the ANSI Z97.1 required permanent label is the only field-visible indicator; Track 2 — UNLICENSED D-20 CONTRACTOR INSTALLS KIND HS HEAT-STRENGTHENED GLASS IN FRAMELESS SHOWER ENCLOSURE — KIND HS GLASS PRODUCT DATA SHEET IS AVAILABLE BUT OMITS "FULLY TEMPERED" DESIGNATION — AHJ BUILDING INSPECTOR IDENTIFIES ABSENCE OF ANSI Z97.1 LABEL ON PANELS DURING FINAL INSPECTION → CBC § 2406.4 SAFETY GLAZING VIOLATION CITED → AHJ REJECTS INSTALLATION → CERTIFICATE OF OCCUPANCY WITHHELD FOR MASTER BATH REMODEL → 6-WEEK DELAY FOR REPLACEMENT GLASS PROCUREMENT AND REINSTALLATION → $8,400 REAL ESTATE TRANSACTION DELAY DAMAGES: Kind HS glass typically costs 15–20% less than Kind FT fully tempered glass of the same nominal thickness; an unlicensed D-20 contractor who substitutes Kind HS to reduce material cost saves approximately $400–$800 on a typical master bath frameless enclosure but exposes the homeowner to an AHJ final inspection rejection because Kind HS glass: (i) does not bear the required ANSI Z97.1 safety glazing label (Kind HS manufacturers do not certify their products to Z97.1 because Kind HS does not meet the Z97.1 safety classification standard); (ii) does not meet CBC Section 2406.4 safety glazing requirement for shower hazardous locations; Track 3 — UNLICENSED D-20 CONTRACTOR INSTALLS 1/4-INCH FRAMELESS PANEL ON 40-INCH × 78-INCH SHOWER ENCLOSURE SIDE PANEL — ANSI Z97.1 MINIMUM 3/8-INCH REQUIRED FOR FRAMELESS PANELS EXCEEDING 36 INCHES IN ANY DIMENSION — NO LATERAL WALL BRACE OR GLASS-TO-GLASS STABILIZATION HARDWARE — DOOR IMPACT LATERAL FORCE EXCEEDS 1/4-INCH PANEL BENDING LIMIT → PANEL FRACTURES AT LOWER HINGE POINT → PANEL SEPARATES FROM U-CHANNEL FLOOR TRACK → SHOWER WATER FLOWS ACROSS BATHROOM FLOOR → WATER PENETRATES SUBFLOOR THROUGH ABS DRAIN FLANGE → BATHROOM FLOODING WETS DRYWALL AND CEILING BELOW → $14,800 PROPERTY DAMAGE TO BATHROOM, SUBFLOOR, AND LOWER LEVEL DRYWALL: ANSI Z97.1 requires minimum 3/8-inch nominal glass thickness for frameless shower panels where any dimension exceeds 36 inches — the 40-inch width of this panel exceeds the threshold; 1/4-inch frameless glass panels are only acceptable for panels under 9 square feet total area where no dimension exceeds 36 inches; the structural failure of the undersized panel dislodges the lower U-channel floor track seal, allowing shower water to bypass the shower pan liner and flow across the bathroom floor.

PURE KETCHUM for Bus. & Prof. Code § 7028 D-20 / C-61 Shower and Bath Enclosure violations: ANSI Z97.1 is a private American National Standards Institute standard — no private civil right of action, no mandatory attorney fee-shifting; ASTM C1048 is a private ASTM International standard — PURE KETCHUM; AHJ residential building permit and CBC Chapter 24 inspection is California administrative — administrative enforcement; CLRA § 1780 mandatory attorney fee entitlement is pure Ketchum; Ketchum v. Moses 24 Cal.4th 1122 (2001); PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000); Hensley v. Eckerhart 461 U.S. 424 (1983); Missouri v. Jenkins 491 U.S. 274 (1989) fees-on-fees.

Primary Welch Anchor: Tyler Odyssey Civil Complaint Filing Date

The Tyler Odyssey civil complaint filing date is the primary Welch temporal anchor for D-20 shower enclosure matters. The attorney files after confirming CSLB C-61/D-20 license status, inspecting safety glazing labels on all installed glass panels, retaining a glazing specialist to assess ANSI Z97.1 and ASTM C1048 compliance, reviewing AHJ building permit and inspection records, and serving the CLRA § 1782 demand. The CSLB D-20/C-61 License Check date is the secondary Welch anchor. Ketchum v. Moses 24 Cal.4th 1122 (2001); PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000).

Secondary Anchor: CSLB License Check (D-20 / C-61 Shower and Bath Enclosure Systems) — THE ONLY D-20 Specialty Anchor in the Fee-Petition-Mechanics Series

The CSLB License Check must confirm the C-61/D-20 Shower and Bath Enclosure Systems limited specialty designation — distinct from D-8 (Glazing, which covers commercial-grade glass work) and C-17 (Glazing full specialty, which covers all residential and commercial glazing). Three scenarios generate § 7028 liability: (a) no CSLB license at all; (b) expired, suspended, or revoked C-61/D-20 license; (c) a handyman, tile contractor, or plumber who installs shower glass enclosures as a standalone service without holding the D-20 limited specialty. This page is THE ONLY D-20 Shower and Bath Enclosure Systems specialty anchor in the fee-petition-mechanics series.

Billing Gap 1 — CSLB D-20/C-61 License Check, Building Permit Review, ANSI Z97.1 Safety Glazing Label Inspection, ASTM C1048 Glass Type Assessment, and § 1782 Demand (5.25 hrs/yr = $1,575–$2,625)

The first billing gap covers pre-complaint advisory for D-20 shower enclosure matters.

• Searching CSLB License Check for C-61/D-20 designation and establishing the secondary Welch anchor: confirming D-20 limited specialty presence or absence; evaluating D-8 distinction (commercial storefront glazing vs. residential shower enclosure systems); confirming license status, bond, and workers compensation insurance.
• Reviewing AHJ residential building permit and safety glazing inspection records — second institutional anchor: obtaining the building permit for the bathroom remodel; confirming whether the AHJ inspector reviewed CBC Section 2406.4 safety glazing compliance; reviewing any inspection correction notices related to glass type or labeling.
• Physically inspecting ANSI Z97.1 safety glazing labels on all installed panels: systematically examining each glass panel in the shower enclosure for the required permanent safety glazing label — acid-etched, sandblasted, or ceramic-fired on the glass surface; documenting the absence, presence, or legibility of each label with photographs; if labels are absent, noting panel dimensions and nominal thickness by measurement.
• Retaining glazing specialist for ASTM C1048 Kind FT vs. Kind HS assessment: specialist reviews available product documentation, purchase receipts, or delivery invoices; if documentation is unavailable, conducts scattered light polariscope (SCALP) surface stress measurement to confirm or exclude Kind FT classification; provides written opinion on compliance with ASTM C1048 and ANSI Z97.1.
• Serving CLRA § 1782 demand incorporating ANSI Z97.1 and ASTM C1048 advisory analysis: demand specifies D-20 unlicensed contracting, identifies three harm tracks, demands disgorgement under § 7031(b), and specifies CLRA § 1780 mandatory attorney fees.

Billing Gap 2 — Active Litigation: Personal Injury Expert, Property Damage Expert, ASTM C1048 Laboratory Testing, and Three-Track Damage Quantification (4.00 hrs/yr = $1,200–$2,000)

The second billing gap covers expert coordination across the three D-20 harm tracks.

• Retaining a personal injury expert and glazing safety specialist for Track 1 annealed glass laceration: glazing safety specialist documents annealed glass break pattern using broken glass evidence (ASTM C1048 fragmentation test comparison); medical expert documents laceration injuries, emergency care costs, follow-up treatment, and nerve damage long-term prognosis; establishes causation between ANSI Z97.1 non-compliant glass and severity of injury compared to fully tempered glass break pattern.
• Kind HS glass technical analysis and AHJ rejection documentation for Track 2: glazing specialist obtains manufacturer product data sheets confirming Kind HS classification; documents AHJ final inspection rejection and correction notice; calculates real estate transaction delay damages from the 6-week delay period including lender rate-lock extension fees, carrying costs, and temporary housing costs.
• Structural failure analysis and property damage quantification for Track 3: glazing engineer documents ANSI Z97.1 panel thickness requirement for 40-inch frameless panel; photographs and documents panel fracture pattern at lower hinge point; water damage restoration contractor quantifies subfloor, bathroom floor, and lower level drywall damage; plumber assesses drain flange integrity post-flooding.
• Settlement valuation incorporating all three harm tracks and CLRA § 1780 mandatory attorney fees: D-20 three-track settlement demand integrates personal injury, Certificate of Occupancy delay, and property damage with CLRA mandatory attorney fees.

Billing Gap 3 — CLRA § 1780 Fee Petition, Pure Ketchum Multiplier, Lodestar Documentation, and Missouri v. Jenkins Fees-on-Fees (4.00 hrs/yr = $1,200–$2,000)

The third billing gap covers fee recovery preparation across all three D-20 harm tracks.

• Documenting the CLRA § 1780 lodestar from the CSLB D-20/C-61 License Check date: ANSI Z97.1 label inspection photographs; glazing specialist ASTM C1048 SCALP surface stress measurement report; AHJ building permit and inspection records; personal injury medical records and expert opinion; ASTM C1048 fragmentation test pattern documentation; property damage contractor repair bid — all fee-petition-eligible.
• Briefing the pure Ketchum multiplier: novelty/difficulty — ANSI Z97.1 safety glazing identification methodology (permanent label location and specification; spark test field method; SCALP laboratory polariscope method); ASTM C1048 Kind FT vs. Kind HS distinction (surface compression measurement methodology; fragmentation test protocol; visual appearance vs. mechanical property differences that create consumer confusion); personal injury causation analysis (fully tempered vs. annealed glass laceration severity comparison; documented clinical outcomes from Z97.1 non-compliant shower glass injuries); Ketchum v. Moses 24 Cal.4th 1122 (2001); PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000).
• Missouri v. Jenkins fees-on-fees for the fee petition: Missouri v. Jenkins 491 U.S. 274 (1989); Hensley v. Eckerhart 461 U.S. 424 (1983).

Total Annual Billing Gap — Three-Gap Summary

• Gap 1 (D-20 CSLB search, building permit review, ANSI Z97.1 label inspection, ASTM C1048 glass type assessment, § 1782 demand): 5.25 hrs = $1,575–$2,625/yr
• Gap 2 (personal injury expert, glazing safety specialist, ASTM C1048 laboratory, three-track damage quantification): 4.00 hrs = $1,200–$2,000/yr
• Gap 3 (CLRA § 1780 fee petition, pure Ketchum multiplier, lodestar documentation, fees-on-fees): 4.00 hrs = $1,200–$2,000/yr
• Total: 13.25 hrs = $3,975–$6,625/yr untracked at $300–$500/hr median California solo practitioner rate