# NycBoilerPermitPulse benchmark report

> As of 2026-11-04, NycBoilerPermitPulse holds 6,142 public records from NYC Department of Environmental Protection Clean Air Tracking System (CATS) permits (NYC Open Data). The largest group is Boiler registration with 4,057 (66%); the median units is 1 (middle half 1 to 1). Computed from the live dataset and updated on every refresh.

## Typical units

- Lowest: 1
- 25th percentile: 1
- Median: 1
- 75th percentile: 1
- Highest: 418

## By location

| Group | Records |
|---|---|
| Manhattan | 2628 |
| Brooklyn | 1504 |
| Queens | 1031 |
| Bronx | 895 |
| Staten Island | 84 |

## By category

| Group | Records |
|---|---|
| Boiler registration | 4057 |
| Certificate to operate | 1240 |
| Registration inspection | 788 |
| Work permit (install or alter equipment) | 57 |

Source: https://zalwin.com/reports/nycboilerpermitpulse-benchmark (updated 2026-11-04).