Authority definitions used across AskBaily pillars

California's state-level contractor regulator since 1929. License classes A, B, B-2, and C-specialty. Every California contractor ≥$500 contract must have an active CSLB number.

California's building-energy code (California Energy Commission). 2025 update doubled down on electrification. Prescriptive vs performance compliance paths. Every California remodel addition triggers it.

NYC's permit + building-safety regulator since 1892. DOB NOW + BIS lookup portals, Alt Type 1/2/3 permits, Local Laws 97/11/152. HIC licensing happens at DCWP, not DOB — easy trap.

Arizona's dual-track contractor regulator (ARS Title 32 Ch. 10). Residential + commercial are SEPARATE license classes. Recovery Fund gives homeowners a statutory backstop against licensed-contractor fraud.

UK statute governing notice + consent + dispute-resolution for building works affecting a party wall or within 3m/6m of a neighbour's structure. Sections 1/2/6 all trigger regularly on London extensions, loft conversions, and basement excavations — runs in parallel with Planning + Building Control.

Washington's contractor registration + workers' comp agency. Uses REGISTRATION (not exam-based licensure) with mandatory $12K/$6K bonds for General vs Specialty contractors, verifiable live at ProtectMyHome. Seattle SDCI permits won't issue to an unregistered contractor.

NSW's builder-licensing + HBCF-insurance + Home Building Act 1989 regulator. Mandatory Home Building Compensation Fund certificate for work ≥A$20K — structural insurance-backed homeowner protection Angi/Thumbtack don't replicate because they don't operate in Australia.

Florida's state contractor-licensing board under DBPR. Certified (statewide) vs Registered (county-only) distinction is a major verification trap. HVHZ High-Velocity Hurricane Zone overlay for Miami-Dade + Broward adds NOA product + installer-certification requirements.

Singapore's construction regulator. CRS L1-L6 contractor grading + HDB renovation permit process + Fire Safety Certificate + Lift Escalator Safety Programme. HDB resale homeowners must use HDB-approved contractors — a standalone BCA license is insufficient.

UK statutory construction standards under Building Act 1984. Parts A–R with Part L (energy, 2025 Future Homes Standard) and Part P (electrical safety) most-referenced. Runs parallel to Planning Permission + Party Wall Act. Completion Certificate required for conveyancing.

Ontario's builder + vendor licensing regulator since 2021. Took over licensing from Tarion (which still handles statutory warranty separately). Ontario Builder Directory is the public verification tool. Applies to NEW home construction — renovation work falls to municipal licensing.

Dubai Municipality's Building Department + Trakheesi licensing platform + contractor Grade A–G classification. Decree 2 of 2020 restructured fit-out rules. Developer NOCs (Emaar, Nakheel, DAMAC) layer on top of DM permits. RTA for off-plot work, FTA for VAT-compliant invoicing.

Texas has NO state-level general contractor license — a structural distinction from California + Arizona. TDLR covers electrical + HVAC + AC/R specialty trades. TSBPE handles plumbing separately. City-level registration (Austin, Dallas, Houston) + RCLA consumer-protection law substitute for state GC licensure.

Federal floodplain rule under 44 CFR 59.1 + 60.3. Any improvement or post-disaster repair whose cost exceeds 50% of the structure's pre-event market value triggers full National Flood Insurance Program code-current compliance — including elevation to Base Flood Elevation. Single biggest overlooked rule on coastal + riverine remodels.

Federal lead-safe-work-practices rule under 40 CFR 745. Any contractor disturbing more than 6 sq ft interior or 20 sq ft exterior painted surface in a pre-1978 home, child-occupied facility, or rental must hold an EPA RRP firm certification and use a Certified Renovator. Civil penalties up to $40,000+ per violation.

Voluntary EPA + DOE residential certification. V3.2 + V3.3 specifications govern envelope, HVAC, water management, and indoor-air-quality checklists. Required for many federal + state housing-finance products (FHA Energy Efficient Mortgage, USDA Rural Development, state utility rebates). Verifier signs four checklists per home.

Federal accessibility standards under 28 CFR 35 + 36 enforced by the US DOJ Civil Rights Division. Apply to public accommodations and commercial facilities under Title III; not residential single-family but DO apply to short-term-rental and small-multi-family commercial conversions. ANSI A117.1 is the technical reference standard.

Underwriters Laboratories standard for emergency lighting + transfer-equipment listings. Required under NFPA 101 + NFPA 70 (NEC) Article 700 for any commercial space with egress lighting. ADUs and accessory commercial spaces in residential remodels often trigger UL 924-listed equipment requirements that contractors miss.

Detailed view of the FL CILB licensing taxonomy. Certified (CGC, CBC, CRC, CCC, CMC, CFC, CPC) means statewide scope; Registered (RG, RB, RR) means county-only. The certified-vs-registered distinction is the single biggest verification trap on FL remodels — required reading before signing any FL contract.

Miami-Dade + Broward overlay defined in Florida Building Code (FBC) Chapter 16 + Section 1620. Exterior products (roofing, windows, doors, garage doors, soffit, shutters) require Miami-Dade NOA (Notice of Acceptance) AND certified-installer compliance. The strictest residential wind-zone code in the United States.

Texas has NO state-level GC license, so contractor registration happens at the city level. Austin Building Standards, Houston RPCB, Dallas BSD, and San Antonio Development Services each run separate ordinances with different bond, insurance, and exam requirements. RCLA (Texas Residential Construction Liability Act) is the consumer backstop.

Illinois Department of Financial and Professional Regulation issues the state's only state-level construction-trade license: Master Plumber and Apprentice/Journeyman Plumber under the Illinois Plumbing License Law (225 ILCS 320). Illinois has no state GC license — Chicago BACP and other municipalities handle GC registration.

Georgia GSBLC, administered by the Secretary of State, licenses residential and general contractors under O.C.G.A. § 43-41. Required for work over $2,500. Tiers: Residential-Basic (RBQA), Residential-Light-Commercial (RBCO), Unlimited (GCCO). Specialty trades (electrical, plumbing, HVAC) licensed by separate boards.

Nevada's contractor regulator under NRS Chapter 624. Unique monetary-limit system: every license carries an explicit dollar ceiling per project (e.g. $75,000, $250,000, Unlimited). Bidding above the limit is grounds for license suspension. Bond + insurance scaled to monetary limit. Las Vegas + Reno metros.

Cross-border contractors (Vancouver WA / Portland OR metro) must hold BOTH WA L&I registration and OR CCB licensing. Bond + insurance minimums differ ($12K WA GC vs $25K OR RGC). Workers' comp is L&I-administered in WA; private + state-fund in OR. Federal Form W-8/W-9 obligations + Oregon Trust Fund Tax.

Oregon Construction Contractors Board bond minimums under ORS Chapter 701: $25K Residential GC, $75K Commercial GC, $20K Specialty. Liability insurance minimums $500K/$1M per occurrence. Bond + insurance lapse = automatic suspension. Disciplinary history at search.ccb.state.or.us.

Two parallel MA state credentials. OCABR HIC (M.G.L. c.142A) covers residential renovation on 1-4 unit dwellings. BBRS CSL (M.G.L. c.143 § 95) is required to pull permits for structural work. Boston-metro contractors typically carry both. Different boards, different exam, different bond.

Massachusetts's lead-paint statute under M.G.L. Chapter 111 §§ 189A through 199A. Stricter than federal EPA RRP: ANY pre-1978 home with a child under 6 occupant must be deleaded under MA-licensed inspector + risk-assessor sign-off. CDLI (Childhood Lead Poisoning Prevention Program) tracks every Letter of Compliance.

NYC building-emissions cap law passed 2019 under the Climate Mobilization Act. Buildings over 25,000 sq ft must meet declining carbon-intensity limits beginning 2024 and tightening through 2050. Penalties $268/metric-ton CO2 over the cap. Renovations triggering Alt-1 permits often trigger LL97 compliance pathway.

NYC facade-safety law under Administrative Code § 28-302. Buildings 6+ stories must file a Technical Facade Report every 5 years (cycles ending in 0/2/3, etc.) signed by a Qualified Exterior Wall Inspector. Class A (Safe), Class B (SWARMP), or Class C (Unsafe) determines remediation timeline.

Ontario splits new-home oversight: HCRA (Home Construction Regulatory Authority) issues builder + vendor licenses under the New Home Construction Licensing Act 2017. Tarion administers the statutory 1/2/7-year warranty under the ONHWP Act. Renovations are NOT covered — Toronto + Mississauga municipal trade licensing.

British Columbia residential-builder licensing under the Homeowner Protection Act. BC Housing's Licensing & Consumer Services issues the Licensed Residential Builder credential. Mandatory 2-5-10 home warranty insurance for every new home. Vancouver-metro renovation-only contractors are NOT licensed at the provincial level.

Québec's contractor regulator under the Loi sur le bâtiment + Code de construction du Québec (NBC 2015 + Chapter I). Mandatory for any contractor work in Québec. License classes (1.1.1 to 17+) define every authorized scope. Licence numbers 10 digits in XXXX-XXXX-XX form. CCQ governs unionized residential work separately.

UK's residential energy code under Schedule 1 of the Building Regulations 2010, Approved Document Part L. 2022 amendment + 2025 Future Homes Standard. Covers thermal envelope, fixed building services, and renewable-energy provisions. SAP (Standard Assessment Procedure) calculation required for compliance.

Statutory health-and-safety duties for every UK construction project under SI 2015/51. Domestic renovations have specific simplified obligations (HSE F10 notification threshold, Principal Designer + Principal Contractor roles). Homeowners are technically the 'client' but duties default to the contractor on domestic work.

Voluntary 10-year UK new-home structural warranty issued by the National House Building Council. Buildmark covers deposit protection, defects insurance years 0-2, and structural insurance years 3-10. Mortgage lender almost always requires Buildmark or competing equivalent (LABC, Premier Guarantee, BLP) for new builds.

New South Wales mandatory insurance under the Home Building Act 1989. Covers homeowners against contractor death, disappearance, insolvency, or licence loss for residential work over A$20,000. Issued through icare HBCF; certificate must be provided to homeowner BEFORE any payment or work commences. Sydney-metro mandatory.

Victoria, Australia's builder regulator under the Building Act 1993. Registered Building Practitioners (RBPs) classes DB-U (Unlimited), DB-L (Limited), and DB-M (Manager). Mandatory Domestic Building Insurance for work over A$16,000. Cladding Rectification levy + LBPs (Licensed Building Practitioners) parallel registration.

Singapore Building and Construction Authority sub-tier for HDB-flat renovation. Distinct from BCA's main Contractors Registration System grades (L1-L6 + workheads). RRC is mandatory for HDB resale renovations; HDB also maintains its own Approved Renovation Contractor list. Standalone BCA license is INSUFFICIENT for HDB.

Dubai Municipality's licensing portal at trakheesi.dm.gov.ae. Single point of entry for contractor classification (Grade A1-G6), trade licensing (DED), Civil Defence approvals, and developer NOCs. RTA (Roads and Transport Authority) layered for any off-plot work. FTA-compliant tax invoicing required for VAT.

Mandatory EU + EEA + UK (UKCA transitional) declaration of performance for construction products under Regulation (EU) No 305/2011. Covers structural steel, doors, windows, insulation, prefab elements. Declaration of Performance (DoP) + CE label required at point of sale. Replaces national mark schemes since July 2013.

Queensland builder + trade licensing under the QBCC Act 1991. Mandatory Home Warranty Scheme insurance for residential work over A$3,300. Builder License (Open / Medium Rise / Low Rise) + Trade Contractor License classifications. Brisbane + Gold Coast + Sunshine Coast metros — strict consumer-protection regime.

Mandatory licensing for any 'restricted building work' in New Zealand under the Building Act 2004. Classes: Carpentry, Site 1/2/3, Foundations, External Plastering, Brick & Blocklaying, Roofing, Design 1/2/3. Licensed-only work covers primary structure, weathertightness, and fire safety. Auckland + Wellington + Christchurch.