NYC Local Law 55 — The Asthma Free Housing Act

Applies in: New York City

What does Local Law 55 actually require?

It requires owners of New York City multiple dwellings to go looking for pests and mold on a schedule, to act on what they find, and to do the acting through integrated pest management rather than through pesticide application alone.

That is the whole law in one sentence, and the word carrying the weight is looking. Most housing obligations in the city are triggered by somebody reporting something. Local Law 55 of 2018, the Asthma Free Housing Act, works the other way round. It sets a periodic duty to inspect that runs whether or not anyone has complained, and it makes the inspection itself the thing the owner is on the hook for. A building can have a spotless complaint log and still be out of compliance, because the complaint log is not what the law asks about.

The second thing the statute does is define the hazard. It creates the term indoor allergen hazard and fills it with specifics: infestation by cockroaches, mice or rats, conditions conducive to that infestation, and indoor mold hazards. Grouping vermin and mold under one heading is not an administrative convenience. It reflects the public-health premise the law was built on, which is that childhood asthma in city housing tracks closely with what is living in the walls and how wet those walls are.

The third thing it does — and this is the part that changes the work rather than the paperwork — is specify how remediation happens. The law requires integrated pest management and says explicitly that the use of pesticides does not substitute for the pest management measures it describes. An owner cannot discharge the duty by hiring somebody to apply material every month. The material is permitted; it is simply not the answer to the question the law is asking.

None of this is legal advice, and this page is not a substitute for reading the statute. It is a plain-language account of published rules, written for owners, boards and managing agents who have to operate under them. Read the law text, and take counsel on how it applies to your building.

Which buildings and which owners does the Asthma Free Housing Act cover?

Owners of multiple dwellings in New York City, which in practice means the great majority of the city’s apartment stock — rentals, cooperatives and condominiums alike.

Multiple dwelling is a defined term rather than a description, and the definition, not the vibe of the building, is what governs. It broadly captures a building arranged to be occupied as the residence of three or more independent households. That sweeps in the six-story pre-war walk-up, the post-war white-brick elevator building, the converted loft, the brownstone divided into four apartments and the large co-op with a doorman. It generally does not capture a one- or two-family house. Where a building sits close to the line — an owner-occupied brownstone with a rented garden unit and a rented parlour floor, say — the classification is a question for HPD or for counsel, and it is worth settling in writing rather than assuming.

The duty attaches to the owner. For a cooperative, that means the cooperative corporation, not the shareholder in whose apartment the mice were seen. For a condominium, the allocation between the board of managers and the individual unit owner is more layered and depends on where the condition sits and on what the governing documents say. Either way, the practical point is the same one boards resist hardest: the obligation is not transferred by telling a resident to call an exterminator. Cost allocation under a proprietary lease and legal duty under the housing code are two different questions, and only the first of them can be settled internally.

Managing agents carry this operationally even though the duty is the owner’s. The agent is usually the party that schedules access, sends notices, holds the file and instructs the contractor, which means an agent who does not have a working Local Law 55 process leaves every building in the portfolio exposed in the same way at the same time. That portfolio view is covered separately under property management pest control, and the board-level version sits under co-op and condo pest management.

One more category is worth naming. Occupants have obligations too under the wider housing code — keeping their own unit reasonably free of conditions that invite pests — but the tenant’s duty does not reduce the owner’s. It exists alongside it.

What counts as an indoor allergen hazard under the law?

Four things: cockroaches, mice, rats, and indoor mold — plus, critically, the conditions that make any of them likely.

That last clause is the one that catches buildings out, because it converts a sighting-based standard into a conditions-based one. A unit with no live cockroach in it on the day of inspection can still present an indoor allergen hazard if the conditions conducive to infestation are there: an open chase behind the base cabinets, a supply line dripping under the sink, a gap around a riser where it passes through the slab, food debris in a compactor room, a cellar drain that no longer holds a seal. The inspector is not only counting animals. They are reading the building.

This is why an inspection that consists of walking into an apartment, looking at the floor and leaving is not really an inspection. The productive places to look are the ones residents never look at: under and behind the sink base, the void beneath a radiator box, the escutcheons where supply lines enter the wall, the back corners of cabinets, around and behind the refrigerator, the tub surround, the window wells, the closet ceiling on the top floor, and the common spaces those units connect to — the chase, the refuse chute door, the cellar, the yard.

Mold is in the same definition for a reason that is worth stating because it changes how the work is scoped. Both hazards are downstream of water. A slow leak inside a wall softens the plaster, feeds the mold and simultaneously supplies the moisture that a German cockroach population needs to persist. Repairing the leak addresses both. Cleaning the mold and spraying the cabinet addresses neither for longer than a season. The law’s own remediation language points at the same conclusion — it asks that the underlying defect be investigated and corrected, not merely that the visible condition be cleaned away.

What does an owner actually have to do, and how often?

Inspect annually across the building, inspect again on complaint or on knowledge, remediate what is found, do it at turnover as well, notify residents, and keep the record.

Those are the moving parts. Taken one at a time:

The annual inspection. The law establishes a periodic duty covering occupied dwelling units and the common areas. It is a building-wide obligation, not a sample. A building that inspects the four apartments that complained has done four inspections and has not performed the annual cycle.

Inspection on knowledge or complaint. Any time the owner is told about a condition, or otherwise becomes aware of one, the duty to look is triggered again independently of where the annual cycle stands. In a shared building the sensible response to a report is to inspect the reporting unit and the units above and below it on the same line, because a chase population feeds into whichever apartment on that stack is currently easiest and the complaining unit is rarely the whole picture.

Remediation. What is found has to be fixed, expeditiously, and by the methods the law describes. For pests that means physically removing nests and debris, sealing the openings that allow movement into and through the unit, and eliminating the water sources that sustain the population — plumbing repairs included. Pesticide application may accompany that work. It may not replace it.

Turnover. Vacancy is a separate trigger with its own standard. Before a unit is reoccupied, visible mold and pest infestation are to be remediated, the underlying defects corrected, the unit cleaned, and the incoming tenant given written certification that it was done. Operationally this is the single best moment in a building’s life to do serious sealing work, because nobody is living in the apartment, the walls are already being touched by the painters, and the cost of opening and closing a cabinet run is at its lowest.

Notice. The law requires that residents be told about the obligations — through lease language and through a department-produced pamphlet — in English and in the covered languages. This is the part that gets quietly dropped when a managing agent changes, and it is trivially cheap to keep right.

Records. Inspections, findings, notices, access attempts, corrective work, certifications. The specifics of what must be retained and for how long are set by the code and by the department’s rules; confirm the current requirements with HPD rather than relying on a summary, including this one.

What does the law mean by integrated pest management?

Ongoing prevention, monitoring and pest control activity, with reasonable effort to eliminate pests from the building — a definition that describes a program rather than a visit.

Read that against what a typical building buys. A monthly service call in which a technician applies material in the compactor room and two apartments is pest control activity. It is not prevention, it contains no monitoring, and nothing about it is directed at eliminating the population from the building as a whole. It satisfies the middle third of the definition and none of the rest.

A program that meets the definition has four things in it that a spray route does not.

Monitoring that produces data. Monitors placed by location, read on a schedule, and logged by where they are rather than summarized as a building total. A monitor in a named cellar location that catches twice in a fortnight is evidence about a specific route; “building serviced, no activity noted” is not evidence about anything.

Inspection that reaches the conditions. Somebody looking behind, under and inside the assemblies where populations actually live — chases, radiator voids, chute doors, cabinet backs, the cellar and its drainage.

Correction assigned to somebody. The findings that matter are usually not the pest contractor’s to close. Sealing a chase is carpentry. Repointing a cellar wall is masonry. A cracked house drain is a plumber. A chute gasket is building maintenance. A finding without a named owner and a date does not become work; it becomes a documented record that the building knew about a condition and left it alone, which is the worst possible file to be holding when someone reads it critically.

Pesticide use that is targeted and secondary. Baits and materials placed where the monitoring says the population is, in the smallest effective footprint, in an occupied residential building where children live. The law’s own phrasing puts application in its place: it does not substitute for the measures described.

The species detail behind all of this sits under cockroach control and rodent control, and the physical discipline the law is describing when it talks about sealing openings is set out under structural exclusion.

Why does exclusion-based work fit the IPM requirement better than routine spraying?

Because exclusion changes the condition the law asks about, and application only changes the population — and the law is written around conditions.

Look again at what the statute treats as a hazard: infestation and conditions conducive to infestation. A pesticide application reduces the first and does nothing at all to the second. On the day after treatment the count is down and every gap, every open chase and every leaking supply line is exactly where it was. If HPD inspects a week later, the condition is still there to be found. If a resident complains again in six weeks, the file shows a treatment and no correction.

Sealing works on the other half of the definition. A closed pipe penetration, a firestopped chase, a repaired door gasket, a fixed leak — these are physical alterations to the building. They persist. They are photographable before and after, which makes them the most persuasive item in any file, and they reduce the population without anybody needing to reduce it, because the animals stop being able to move into and through the spaces they were using.

There is also a public-health logic here that is specific to this law rather than general to pest control. The Asthma Free Housing Act exists because of what children in city apartments breathe. Cockroach allergen is a particulate that persists in the fabric of a home long after the insects are dead — which is why the law’s own work practices call for physically removing nests and debris by HEPA vacuuming rather than simply killing the population and leaving it in place. Additional pesticide in a child’s bedroom is not a neutral act in that context, and a compliance approach that increases application volume while leaving the harborage intact is working against the purpose of the statute it is meant to satisfy.

The candid version, which we say to boards on the first visit: if a contractor’s Local Law 55 proposal is a service frequency and a price, it is not a Local Law 55 proposal. The law is asking what you found and what you changed.

What happens when a tenant complains or HPD inspects?

The complaint goes to the city, an inspector is sent, and if the condition is found the building receives a violation with a correction window and a certification requirement attached to it.

The pathway is worth understanding as a sequence, because most of the leverage a building has sits early in it.

A resident who is not satisfied with the building’s response can report the condition to the city, which routes housing complaints through 311 to HPD. The department sends an inspector, and the department’s own timeline for responding to allergen-hazard complaints is set by the law rather than left to discretion. The inspector attends the unit, and if the condition is present, records it.

What follows is a violation notice against the building, classified according to how serious the code considers the condition. The classification matters because it drives everything downstream: how long the owner has to correct, how quickly the department will re-inspect, and how the penalties accrue. Active infestation by rodents or cockroaches in a dwelling unit sits at the serious end of that scale rather than the trivial end, and the correction period for the serious classes is short. Do not take a specific number of days from any summary, including this one — the current windows and classes are published by HPD and are the thing to check.

The owner then has to correct the condition and to certify that the correction was made, in the form and within the period the department requires, with the certification standing behind the work practices the law specifies. A false certification is treated far more seriously than a late one. That distinction is worth passing on to anyone in the building who might be tempted to close a violation on paper before the work is actually finished.

Two further practical notes. First, a building must be properly registered with HPD to be able to certify violations at all, and an expired registration turns an administrative oversight into a compliance failure on a different axis. Second, the complaint is not the only route in; department inspections arising from other matters can and do generate allergen-hazard findings.

What are the consequences of not complying?

Civil penalties that accrue, work performed by the city and billed back to the building, and a documentary record that becomes the central exhibit in anything that follows.

Take those in order of how much they actually hurt.

Penalties. The code provides for civil penalties for failing to correct within the period, and it treats false certification as its own offense with its own, heavier consequences. Penalties for uncorrected conditions can accrue rather than being a single fixed charge, which is what makes an ignored violation expensive out of proportion to the underlying repair. The amounts are set by statute and are the sort of figure a board should read from HPD’s own published material rather than from a contractor’s website.

The city doing the work. Where a serious condition is not corrected, HPD has mechanisms to have the work done and to charge the owner for it. That charge does not stay a bill. It can become a lien against the property, which is a materially different problem from an invoice, and it is charged at the city’s contractor rate rather than at the price the building would have negotiated.

Litigation and habitability. A documented, uncorrected pest condition is useful to a tenant’s attorney in a way that a resolved one is not. It supports habitability claims and HP proceedings in housing court, and it colors every other dispute the building has with that resident.

The file. This is the consequence boards underrate, and it outlasts the others. A record showing the same condition found in three consecutive annual inspections, with no corrective work between them, is not a neutral document. It demonstrates knowledge. A building is in a far stronger position holding a file that records an inspection, a finding, an assigned repair, a completion date and a photograph than one holding twelve service tickets that say the building was serviced.

How is Local Law 55 handled in practice in an occupied building?

By treating the annual cycle as a survey rather than a formality, phasing corrective work by stack, and keeping the access record as carefully as the findings.

Here is what that looks like in a real building over a year.

Set the baseline once, properly. The first cycle is the expensive one, because it is the one that establishes what is actually happening in the structure: which lines have chase populations, where the refuse system leaks, what state the cellar drainage is in, which apartments have leaks the building has never been told about. Everything afterwards is measured against it. A building that skips this and starts with a service frequency has bought attendance without a diagnosis.

Schedule access seriously. The annual inspection lives or dies on getting into apartments, and getting into apartments is a notice-and-scheduling problem more than a pest problem. Give proper written notice, offer a real window, offer a second, and record all of it. Buildings that batch inspections by line rather than by convenience get better data and fewer repeat visits, because a stack read as a stack tells you where the population lives.

Separate the two kinds of finding. Some findings close the same day — a monitor placed, debris vacuumed, a gap sealed with mesh and mortar. Others are trade work with a lead time and a budget line: a chase firestopped floor by floor, a chute door replaced, a house drain repaired. Putting both into one undifferentiated list is how the second kind sits unfunded for a budget cycle. Put them on a corrective register with owners and dates, and report the register’s open items every time.

Use turnover. Every vacancy is a free scaffold. The apartment is empty, the trades are already there, and sealing the cabinet run and the pipe penetrations while the kitchen is open costs a fraction of what the same work costs in an occupied unit. Buildings that write this into their turnover checklist reduce their Local Law 55 exposure without a special assessment.

Close the alteration loop. A shareholder renovation opens a chase and, very often, leaves it open. That single mechanism reactivates more quiet stacks than anything else in a stable building. Requiring penetration sealing and a post-work inspection in the alteration agreement costs the building nothing.

Write reporting for the person who has to act. The managing agent needs the open items. The board needs the trend and the decision it is being asked to make. One document addressed to both usually serves neither.

What should a board or owner ask a pest contractor about Local Law 55?

Six questions, and the answers will separate a compliance partner from a spray route in about ten minutes.

“What will your inspection actually cover, and how will I receive it?” The answer you want describes locations and assemblies — chases, cabinet backs, radiator voids, chute doors, cellar drainage — and a written finding by location. The answer you do not want is a frequency and a price.

“What will you not be able to fix, and who should?” A contractor who says everything is within their scope has not understood the law. Most of the durable corrections under Local Law 55 are carpentry, masonry and plumbing. What you want is somebody who will specify that work precisely enough for another trade to price it, and then come back and verify it was done.

“How will your pesticide use be justified against the IPM requirement?” The statute says application does not substitute for the measures it describes. Ask how material selection and placement follow from the monitoring, and what the plan is for reducing application volume as the structural work lands.

“What does the record look like, and can it survive a change of board?” Ask to see a sample: findings by location, photographs before and after, an access log with refusals recorded individually, a corrective register with owners and dates, and a trend. Ask who holds it and how you get a copy.

“How do you handle a unit we cannot get into?” The right answer is a documented re-attempt process, not a shrug. Access failures are the most common gap in an otherwise sound file.

“What do you not know?” Any contractor telling a board with total certainty how HPD will classify a given condition, or how many days a particular violation allows, is guessing at something published. The useful answer is that the classes and windows are HPD’s to state, here is where to read them, and here is what we can tell you about your building.

One last thing worth being direct about: no pest contractor can make a building compliant on its own, and any who says otherwise is selling. The inspection cycle, the notices, the access, the registration and the funding of corrective work are the owner’s, and they are where most buildings actually fall short.

Where should we read the rules for ourselves?

At the source, which is short enough to read in an afternoon and considerably more useful than any summary.

The statutory text is published as Local Law 55 of 2018, and the article it amends sits inside the NYC Housing Maintenance Code, where the older extermination and rodent-eradication duties also live. Those two instruments operate together, and a building that reads only one of them will misjudge its position: the code establishes the standing duty to keep the premises free from pests, and Local Law 55 adds the inspection cycle, the definition of the hazard, the work practices and the turnover requirement on top of it. The relationship between them is set out on our page covering the Housing Maintenance Code’s extermination provisions.

Where a pesticide is applied in the course of remediation, a separate body of rules governs how that application is notified. New York City’s requirements are described under Local Law 36 pesticide notification, and the statewide framework those requirements sit inside is covered under the New York neighbor notification law. A building can be entirely correct under Local Law 55 and still be in breach of the notification rules, because they are different statutes answering different questions.

This page is general information about published rules and is not legal advice. Requirements change, agency guidance is revised, and the way any rule applies to a particular building depends on facts this page cannot know. Confirm current requirements with HPD or with your attorney before acting on any of it.

The program side of this work — surveys, corrective registers and board reporting — is described under commercial pest management, with the board-level view under co-op and condo pest management and the portfolio view under property management pest control. To discuss a specific building, contact us with its age, its construction and its complaint history.