Allentown, PA Data Centers & Crypto Mining: Data Center Noise Limits (2026)
Key Facts
- Sound study required
- By certified acoustics engineer, pre-approval
- As-built follow-up study
- Due 6 months after occupancy
- Vibration standard
- Not perceptible beyond property line
- Noise standard referenced
- Chapter 400, Noise
- Applies to
- Data centers incl. crypto mining
Summary
Before a data center can open in Allentown, § 660-38.H(2)(g) requires a certified acoustics engineer to produce a sound study proving the facility will meet Chapter 400's noise limits, including any persistent low-frequency hum, plus a separate vibration study showing no vibration will be perceptible beyond the property line. A follow-up as-built sound study is due six months after occupancy.
(g) Noise and vibration. [1] A sound study shall be produced by a licensed professional engineer specializing in acoustics or an engineer Board Certified by the Institute of Noise Control Engineers to demonstrate that the data center and data center accessory uses will conform with the requirements of Chapter 400, Noise. Sound study should also assess any persistent tonal sounds (hums) or other consistent low-frequency or ambient noise. The licensed professional must state whether noise mitigation measures are recommended by noise study and, if so, identify the applicable mitigation measures. [2] An as-built sound study shall be conducted six months after issuance of the Certificate of Occupancy for any data center and data center accessory uses and upon request by the City thereafter to ensure continuous compliance with the requirements of Chapter 400, Noise, and consistent with the representations and/or mitigation strategies described in the sound study. [3] A vibration study prepared by a qualified professional shall be provided that demonstrates that no vibration from the data center and data center accessory uses will be perceptible to the human sense of feeling beyond the property line.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4995055; v49 updated 2026-06-26; through 06-26-2026).
Full Breakdown
H, face noise scrutiny well beyond Allentown's general Chapter 400 noise code. H(2)(g)[1] requires the applicant to submit a sound study prepared by a licensed professional engineer specializing in acoustics, or an engineer Board Certified by the Institute of Noise Control Engineers, demonstrating that the facility will conform to Chapter 400. The study must specifically evaluate persistent tonal sounds, the humming that cooling and server equipment commonly generates, along with any other consistent low-frequency or ambient noise, and the engineer must state whether mitigation measures are recommended and, if so, identify them.
H(2)(g)[2] requires an as-built sound study six months after the Certificate of Occupancy is issued, and the City can demand another one at any point afterward to confirm the facility still matches the noise representations and mitigation strategies in its original study. H(2)(g)[3], also prepared by a qualified professional, must show that no vibration from the data center or its accessory uses is perceptible to the human sense of feeling beyond the property line, a stricter, physically measurable standard than the audible-noise study. H(2) siting package, including the setbacks and landscaped buffer, giving the City multiple technical checkpoints before and after a data center, including a mining or blockchain operation, begins running.
Violations & Fines
Opening a data center without the required sound and vibration studies, or operating one that fails to meet Chapter 400's noise limits or lets vibration reach beyond the property line, is a zoning violation Allentown's Zoning Officer can enforce with a stop-work order or citation, and the City can compel a new as-built sound study at any time to verify continued compliance with the mitigation measures described in the original study.
Frequently Asked Questions
Does a data center need a noise study to open in Allentown?
Does Allentown check data center noise after it opens?
Are there vibration limits for data centers in Allentown?
Sources & Official References
Other rules in Allentown
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