Louisiana Industrial Noise Permitting via DEQ

Louisiana lacks a numerical statewide industrial noise standard like those in some other states; LDEQ permitting under the Louisiana Environmental Quality Act (R.S. 30:2001 et seq.) focuses on air, water, and waste emissions but not specific decibel limits. Industrial noise is principally addressed through Civil Code Article 667-669 (vicinage obligations and nuisance) and through local zoning that designates compatible industrial districts. La. R.S. 30:2025 authorizes LDEQ enforcement of conditions placed on facility permits, which can include negotiated noise mitigation. Federal OSHA standards (29 CFR 1910.95) apply to occupational noise inside facilities. Neighbors can pursue civil nuisance actions even where a facility complies with permits.

Civil nuisance remedies under C.C. 667 include abatement and damages. LDEQ permit violations can carry administrative penalties up to $32,500 per day under R.S. 30:2025.