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Local Law 151 of 2025 requires owners of multiple dwelling buildings (3+ residential units) that have steam heating systems to have steam radiators inspected at least once every two years in dwelling units where there is at least one steam radiator and where a child under the age of six resides and common areas of those buildings. A steam radiator is a heat exchanger that is a component of a central heating system that uses steam to provide heat to rooms.
Owners are required by law to complete two processes related to the steam radiators: Annual Notice process and Inspections.
Beginning January 2027 and every January thereafter, between January 1st and January 16th, owners are required to provide tenants with the Annual Notice for Inspection of Steam Radiators – Inquiry Regarding A Child.
The Annual Notice must be provided to each tenant in at least English and Spanish and in duplicate (two copies of each) so the tenant can retain a copy and return a copy to the owner.
The Annual Notice is also available in additional languages:
Tenants are required to complete this form and return it to their landlord by February 15th each year.
The owner must maintain records indicating that Annual Notice process was completed and the findings of that process, including:
HPD recommends that property owners/agents use this Annual Notice Owner Summary of Delivery and Response Tracking Form, or a similar tool, to maintain your records for sending the Annual Notice and tracking the information received back from tenants.
No later than March 1st of each year, the property owner/agent must notify HPD, using the Tenant No Response Form, about each apartment where an owner does not receive a written or verbal response from the occupant by February 15th and does not otherwise have knowledge of a child under the age of six in residence. The Tenant No Response Form must be returned to HPD at Radiatorinfo@HPD.NYC.GOV, or
100 Gold Street, 5Z
New York, NY 10038
Attention: Code Enforcement - Radiators
Once a property owner knows which apartments require an inspection based on the results of the Annual Notice process, the owner should determine whether an inspection was already completed in that apartment within the past two years. If so, the owner should document that no inspection needs to be conducted. If not, an inspection must be completed.
Who can do the inspection?
The individual performing the steam radiator inspection is required to complete and submit to the owner an Affidavit of Qualification of Inspector Form, which is valid for the calendar year. Steam radiator inspections must be performed by an individual who is qualified to do so as an “Inspector” as defined under NYC Administrative Code §27-2056.21, which includes:
*The Steam Radiator Inspection Manual will be available in mid-May 2026.
What is required in the inspection?
Copies of the records required to be maintained include annual radiator notices and inspection reports which must be provided upon request by HPD. Failure to maintain and provide records in accordance with §27-2056.23 shall result in a civil penalty of not more than $500.
HPD may also conduct inspections related to radiators whenever a tenant complaint is received, and appropriate violations may be issued.