# Regulations.gov document: USEPA. 1987a. U.S. Environmental Protection Agency. Radon Reference Manual. Washington, D.C. Office Radiation Programs. EPA 520/1-87-20 [PHASE-III-RADS-III-B2E1-20] — retained record

> Retained regulations record from regulations-gov.

Canonical: https://highsignal.app/data/records/8f66502d0c9827bf

[← sources](https://highsignal.app/data)


source: [regulations](https://highsignal.app/data/regulations) (regulations-gov)  published 2026-08-17 04:00 ingested 2026-08-18 06:29

[original source ↗](https://www.regulations.gov/document/EPA-HQ-OW-1986-0161-0144)

## retained text



```
Query: data center
Agency: EPA
Type: Supporting & Related Material
Docket: EPA-HQ-OW-1986-0161
```



document fetched 2026-08-18 06:29 · canonical https://regulations.gov/document/EPA-HQ-OW-1986-0161-0144