Nobody puts "indoor allergen compliance" on a business card. But if you touch a New York City apartment building, you're already doing it.

Local Law 55 — what the city calls the indoor allergen hazards law, laid out in HPD's own owner's guide — requires owners of Class A multiple dwellings, basically any apartment building with three or more units, to inspect every apartment at least once a year for mold and pests. And fix what they find using specific methods, not whatever a handyman has on the truck.

For pests, that means Integrated Pest Management: sealing entry points and cutting off food and water sources, not just spraying and hoping. For mold, the city's own guidance treats anything past a small patch — bigger than a bath mat, roughly — as a job for containment and a HEPA vacuum, not a can of bleach and a fresh coat of paint.

Here's the part a GC or a remediation sub needs to hear before the next post-water-damage callback: do the job the informal way, and the owner can end up cited by HPD. And the contractor who caused the redo doesn't get invited back.

Owners also have to keep inspection records and tell incoming tenants about any known mold history in the unit. If you're a super or a small maintenance contractor doing these inspections for a landlord client, that paperwork is part of the job now, not an afterthought.

If your crew handles turnover work, water damage, or routine pest calls in NYC multifamily buildings, build the annual-inspection language into your service contracts now. It's cheaper than explaining an HPD violation to a client after the fact. The law didn't invent mold and roaches. It just decided somebody has to sign their name to fixing them the right way.