Macon-Bibb County, GA Noise Ordinances: Decibel Limits (2026)
Key Facts
- Numeric limit
- 3 decibel maximum increase at property line
- Where it applies
- BE Subzones A, B, C near Robins AFB
- Testing cost
- Paid for by the applicant
- Related standard
- Table 20C.02 land use/Ldn compatibility & NLR
- Variance authority
- Macon-Bibb County Planning and Zoning Commission
Summary
Property near Robins Air Force Base cannot raise ambient noise for neighbors. Section 20C.02[6](f) of the Comprehensive Land Development Resolution caps any increase in average day/night sound level crossing a development's property line at three decibels inside Subzones A, B and C of the base environs overlay zone, with the applicant paying for any field testing needed to prove compliance.
[6](f)Noise. No development within Subzones A, B, and C of the base environs overlay zone (BE) may produce noises that would increase average day/night noise levels beyond the boundaries of the development property by more than three (3) decibels. Where field testing is necessary to determine compliance with this requirement, it shall be conducted and paid for by the applicant. (Amended December 12, 1994, ZA94-12-01)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Comprehensive Land Development Resolution: Supplement 4 | Code of Ordinances: Supplement 20).
Full Breakdown
03. 02[6] sets development standards for the overlay, and subsection (f) is the county's only numeric decibel rule: within Subzones A, B and C, a proposed use or structure may not increase the average day-night sound level (Ldn) beyond the boundaries of the development property by more than three decibels. The Resolution puts the burden of proof on the developer, not the county, stating that where field testing is necessary to determine compliance with the three-decibel cap, it shall be conducted and paid for by the applicant.
02, the Land Use Compatibility Standards table, which cross-references land uses against the base's Ldn contour bands and requires interior noise level reduction (NLR) construction measures, evidenced before an occupancy permit issues, for uses sited in louder contour bands. 02 standard goes to the Macon-Bibb County Planning and Zoning Commission and must be accompanied by a written determination from both the FAA and the RAFB civil engineer's office; variances for outright prohibited land uses are not permitted at all. 02[9](b).
Violations & Fines
A proposed use that would push the day-night sound level at the property line more than three decibels above ambient in Subzones A, B or C fails the Section 20C.02[6](f) standard and the Commission can deny or condition zoning compliance until it is redesigned or field-tested. Because the applicant bears the cost of any decibel testing, a developer who refuses to fund it cannot establish compliance and the use cannot proceed.
Frequently Asked Questions
Is there a numeric noise limit anywhere in Macon-Bibb County's code?
Who pays to test whether a project exceeds the 3-decibel limit?
What if my project is inside Subzone D or E instead of A, B or C?
Sources & Official References
Other rules in Macon-Bibb County
Compare Macon-Bibb County to another location·View the Georgia noise ordinances overview
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