NYC Building Safety Local Laws: FISP, Gas, Lead, Mold & Construction

The other half of NYC building compliance — the half that isn't about energy and carbon — is about physical safety. Facades that don't fall on people. Gas piping that doesn't leak. Parking structures that hold up. Lead paint that doesn't poison children. Mold that doesn't trigger asthma. Construction sites where workers come home alive at the end of the day.

This guide is the master walkthrough of the seven major safety and inspection local laws (LL11, LL152, LL126, LL196, LL157, LL26, LL32) plus the four habitability/health laws (LL31, LL55, LL62) that round out the obligation set. We've grouped them functionally rather than by code number, since that's how most owners think about them.

Roughly 13,500 NYC buildings sit on the FISP cycle (LL11). All 190,000+ NYC buildings except R-3 single-/two-family homes sit on LL152. Approximately 1.1 million NYC dwelling units are subject to LL55. The combined safety-law load is the broadest compliance regime an NYC owner faces.

01 · STRUCTURAL INTEGRITYFISP, parking structures, and the inspection laws

Three local laws govern the structural integrity of NYC buildings: LL11 (facades), LL126 (parking structures), and the legacy LL26 (sprinklers in tall office buildings). They share a common pattern — periodic inspection by a qualified professional, with classification of conditions and follow-up cure.

LL11 / FISP — Façade Inspection Safety Program

• Coverage: Every NYC building over 6 stories
• Cycle: Every 5 years (Cycle 10: 2025–2030)
• Sub-cycles: A, B, C staggered by block last digit
• Professional: Qualified Exterior Wall Inspector (QEWI) — licensed PE or RA
• Classifications: SAFE, SWARMP, UNSAFE
• Penalty exposure: $1K–$5K/month late filing + $1K/month unsafe condition + sidewalk shed costs ($25K–$80K/year)

Deep dive: FISP Cycle 10 owner's guide.

LL126 — Parking Structure Inspection

• Coverage: All NYC parking structures (~4,000 buildings)
• Cycle: Every 6 years
• Professional: Qualified Parking Structure Inspector (QPSI)
• Classifications: SAFE, SREM (Safe with Repairs and Engineering Monitoring), UNSAFE
• Penalty exposure: $1K/month late filing + repair costs $50K–$500K

Deep dive: FISP vs LL126 comparison.

LL26 — Sprinkler Retrofit (Office Towers)

• Coverage: Office buildings over 100 ft tall (~4,500 towers)
• Status: One-time retrofit; deadline was 2019. Most buildings completed.
• Ongoing obligation: Certificate of completeness on file with DOB and FDNY
• Penalty for non-compliance: $10K+/year ongoing + cascading DOB + FDNY violations

Deep dive: LL26 reference.

02 · GAS SAFETYThe two-law gas regime

Two laws together cover gas safety in NYC residential buildings: LL152 (gas piping inspection) and LL157 (natural gas detectors).

LL152 — Gas Piping Inspection

• Coverage: ~190,000 NYC buildings (all except R-3 1–2 family homes)
• Cycle: Every 4 years, by community-district cohort
• Professional: Licensed Master Plumber (LMP)
• Filings: GPS1 (clean) / GPS2 (unsafe condition) / GPS3 (re-inspection) / No-Gas Certification
• Filing window: 60 days from inspection
• Penalty exposure: $10K baseline for missed cycle + $1K–$5K/month late + $1.5K–$25K for unaddressed unsafe conditions

Deep dive: LL152 cohort guide.

LL157 — Natural Gas Detector Installation

• Coverage: All Class A & B multiple dwellings with natural gas service
• Deadline: Universal Jan 1, 2027
• Detector standard: UL 1484 or UL 2075 listed
• Placement: 3–10 ft from any gas appliance, within 1 ft of ceiling, every dwelling unit
• Plus: Common-area notice posted; gas safety information distributed to at least one adult per unit
• Penalty exposure: $150–$1,000 per unit first offense, escalating; tort exposure on any gas-related incident

Deep dive: LL157 reference.

03 · CONSTRUCTION SAFETYThe site-side regulation

Construction sites are governed by their own safety law — Local Law 196 — which carries some of the highest per-incident penalties in the entire NYC code stack.

LL196 — Site Safety Training

• Coverage: Every worker and supervisor on a construction site requiring a Site Safety Plan
• Requirement: Each worker holds a Site Safety Training (SST) card
• Card levels: 10-hour (introductory), 30-hour (most workers), 40-hour (supervisors), 62-hour (site safety managers)
• Provider: DOB-approved training provider
• Penalty exposure: $5,000 first offense, $10,000 second offense, $25,000 third+ offense — per worker

The penalty structure stacks: each untrained worker found at an inspection is its own offense. A site with five untrained workers in a third-offense status faces $125,000 in a single inspection. General contractor liability adds.

04 · FUEL TRANSITIONThe LL32 phaseout

Local Law 32 of 2023 is technically an environmental law (joint DOB + DEP enforcement), but functionally it operates as a building safety + air-quality regulation, prohibiting No. 4 fuel oil for heat or hot water.

LL32 — No. 4 Fuel Oil Phaseout

• Initial prohibition: Jul 1, 2025 (passed)
• Citywide complete ban: Jul 1, 2027
• Conversion options: No. 2 fuel oil, biofuel blend, natural gas, electric heat
• Professional: Licensed boiler/burner installer + Registered Design Professional for conversion permits
• Penalty exposure: DOB violation per inspection event + civil penalties + DEP air-quality enforcement

Most NYC owners who burned No. 4 oil have already initiated conversion. The buildings still on No. 4 oil heading into 2026–2027 are typically those that delayed for capital reasons — the conversion typically costs $25,000–$200,000 depending on building size and target fuel.

Deep dive: LL32 reference.

05 · HEALTH & HABITABILITYThe HPD-enforced laws

Three local laws govern conditions inside individual dwelling units: LL31 (lead paint), LL55 (mold + pests), and LL62 (carbon monoxide). These are separate from the structural-safety laws above but share the building-safety theme.

LL31 — Childhood Lead Poisoning Prevention

• Coverage: Pre-1960 multifamily Class A buildings with children under 6
• Annual notice window: Jan 5 – Feb 15
• Inspection: XRF testing within 1 year of identification, every 3 years thereafter, plus turnover testing
• Professional: EPA-certified Lead Inspector / Risk Assessor
• Penalty exposure: Class C 21-day cure at $250–$500/day; HPD ERP at 3–5× private cost

Deep dive: LL31 owner's guide.

LL55 — Indoor Allergen Hazards (Asthma-Free Housing Act)

• Coverage: All Class A multiple dwellings
• Annual obligations: Indoor allergen inspection + IPM plan + tenant notice
• Mold over 10 sq ft: Requires NYS DOL-licensed Mold Assessor + Remediator (LL61)
• Penalty exposure: $2,500–$5,000 per uncured Class C; HPD ERP if uncured past 21 days

Deep dive: LL55 mold & pest guide.

LL62 — Carbon Monoxide Detectors

• Coverage: Every dwelling unit in NYC
• Requirement: CO detector installed per HPD/DOB specifications
• Battery + sensor lifespan: Owners responsible for replacement on manufacturer schedule
• Penalty exposure: $500–$1,500 per missing or expired alarm

06 · WHO ENFORCES WHATThe agency map for safety laws

07 · CYCLE OVERLAPThe simultaneous-deadline trap

Several safety laws overlap in execution windows — meaning a single building can have multiple cycle deadlines hitting in the same year. The most common overlaps:

• FISP + LL152 same year: If your FISP sub-cycle and your LL152 community-district cohort align, both filings hit in the same calendar year. Two separate inspections, two separate professionals, two separate filings.
• LL11 + LL87 same year: A 50K+ sq ft tall building can have FISP and LL87 EER both due in the same year. Three separate professionals (QEWI, energy auditor, RCx agent).
• LL31 turnover + LL55 turnover + LL157 install: All three inspections hit at every unit vacancy in 2026, leading up to the Jan 1, 2027 LL157 deadline.

08 · COST PER LAWWhat safety compliance actually costs

For a typical 50,000 sq ft mid-rise multifamily building, the annualized safety compliance cost:

Penalty avoidance value: if your safety compliance prevents one Class C HPD violation with ERP intervention (typical cost $15K–$50K), the annual safety compliance cost is paid back from a single incident.

09 · MONITORINGTracking 11 laws across a portfolio

The safety + health stack is the broadest compliance regime an NYC owner faces. Eleven laws across four agencies (DOB, HPD, FDNY, NYS DOL/EPA), with different cycle lengths, qualifying professionals, and filing systems. Manual tracking at portfolio scale is the single biggest predictor of missed cycles — which is why we built Local Law Tracker ($59.99/yr add-on) to handle it automatically per building.

ViolationWatch tracks all 11 safety-and-health laws per building, surfaces 311 complaints in real time (catching the early-warning signal before HPD violation), and pushes filing events from DOB / HPD systems within 10–20 minutes. Run a free check on any address or start a 7-day trial.

10 · BOTTOM LINEThe safety + health stack in one paragraph

Eleven laws govern NYC building safety and habitability. Three are structural inspection laws on multi-year cycles (LL11 facade, LL126 parking, LL26 sprinklers). Two are gas-safety laws (LL152 piping, LL157 detectors). One is construction-site personnel safety (LL196). One is fuel-transition (LL32). Three are HPD-enforced habitability laws (LL31 lead, LL55 mold, LL62 CO). The combined annual compliance baseline is $6K–$20K per mid-size building. The penalty exposure for non-compliance is dramatically larger — six-figure exposure on missed FISP filings, ongoing daily penalties on uncured Class C HPD violations, $25K per untrained construction worker. The work is not optional, and the math on continuous monitoring vs ad-hoc tracking favors monitoring at any portfolio size above 2 buildings.

For the energy-side counterpart, see our NYC sustainability local laws guide. For the master 2026 cluster, start at our 2026 NYC local laws guide.