[Research](/research) / NycBoilerPermitPulse

# New NYC Boiler Registrations, DEP Certificates & Equipment Work Permits: 2026 statistics from 6,142 public records

**The most common request type is Boiler registration: 4,057 of 6,142 records (66.1%) (as of 2026-11-04; source: NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data)).**

Data as of 2026-11-04 · Compiled by Zalwin from NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data) Copy citation

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## Key findings

- Zalwin's NycBoilerPermitPulse dataset holds 6,142 NycBoilerPermitPulse records dated 2026-05-01 to 2026-10-30 (as of 2026-11-04; source: NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data)). [#](#finding-1)
- The most common request type is Boiler registration: 4,057 of 6,142 records (66.1%) (as of 2026-11-04; source: NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data)). [#](#finding-2)
- Across 6,142 records with a stated units, the total is 10,667 and the median is 1; the largest is 418 (Apex Technical School) (as of 2026-11-04; source: NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data)). [#](#finding-3)
- The top 10% of records by units (614 of 6,142) account for 41.4% of the total (as of 2026-11-04; source: NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data)). [#](#finding-4)
- 918 of 6,142 records (14.9%) are dated within the 30 days before 2026-11-04 (source: NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data)). [#](#finding-5)

## NycBoilerPermitPulse records by request type

| Group | Records | Share |
|---|---|---|
| Boiler registration | 4,057 | 66.1% |
| Certificate to operate | 1,240 | 20.2% |
| Registration inspection | 788 | 12.8% |
| Work permit (install or alter equipment) | 57 | 0.9% |

## Methodology and data provenance

- Sample: 6,142 public records dated 2026-05-01 to 2026-10-30; illustrative samples excluded.

- Source: NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data). Refreshed automatically about every 24 hours; figures above are as of 2026-11-04.

- Shares are of all records in the dataset; totals and medians use only records with a stated units.

- Organization-level data only. Informational; verify individual records at the official source.

### Cite this study

Zalwin Research, "NycBoilerPermitPulse statistics" (data as of 2026-11-04), https://zalwin.com/research/nycboilerpermitpulse

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