Summary
KOPPERS CO INC has accumulated 42 OSHA violations across 6 inspections over 49 years of recorded history, with $5,080 in total assessed penalties.
The establishment sits in the 99th percentile for violations within its industry-state peer group of 75,927 employers. Inspection frequency runs at the 99th percentile. The most recent enforcement activity was recorded 46 years ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
KOPPERS CO INC appears in OSHA workplace safety and NLRB labor relations records only. No matching records were found in WHD wage enforcement, MSHA mine safety, EPA environmental compliance, OFLC visa and labor certification (historical), FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, CPSC product recalls, or NHTSA vehicle recalls.
OSHA workplace safety
67% of inspections at this establishment produced violations, with 4 inspections producing serious-or-greater violations.
Most-cited OSHA standards
Top OSHA standards cited at this employer, ranked by citation count. Standards (CFR sections) cluster citations into safety themes -- machine guarding, lockout-tagout, hazard communication, fall protection, process safety, etc. A concentration on one or two sections reveals a pattern that individual citations don’t. 20 distinct standards shown · 23 citations in this view · $5,080 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 29 CFR 1910.0134 B02 | 2 | 2 | $600 | Sep 1977 | Dec 1979 |
| 29 CFR 1910.0134 E03 | 2 | 2 | — | Sep 1977 | Dec 1979 |
| 29 CFR 1910.0134 B09 | 2 | 2 | — | Sep 1977 | Dec 1979 |
| 29 CFR 1910.0023 A08 | 1 | 1 | $560 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.1000 A02 | 1 | 1 | $500 | Sep 1977 | Sep 1977 |
| 29 CFR 1910.0095 B01 | 1 | 1 | $490 | Sep 1977 | Sep 1977 |
| 29 CFR 1910.0132 A | 1 | 1 | $400 | Jan 1980 | Jan 1980 |
| 29 CFR 1910.0309 A 011017 | 1 | 1 | $360 | Jun 1979 | Jun 1979 |
| 29 CFR 1910.0106 H07 IB | 1 | 1 | $360 | Jun 1979 | Jun 1979 |
| 29 CFR 1910.0134 E01 | 1 | 1 | $350 | Jan 1980 | Jan 1980 |
| 29 CFR 1910.0176 A | 1 | 1 | $320 | Jun 1979 | Jun 1979 |
| 29 CFR 1910.0134 E05 I | 1 | 1 | $320 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0219 F03 | 1 | 1 | $240 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0022 C | 1 | 1 | $180 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0023 C03 | 1 | 1 | $100 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0309 A 030012 | 1 | 1 | $60 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0022 A01 | 1 | 1 | $60 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0024 F | 1 | 1 | $60 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0025 D01 X | 1 | 1 | $60 | Oct 1977 | Oct 1977 |
| 29 CFR 1910.0309 A 025042 | 1 | 1 | $60 | Oct 1977 | Oct 1977 |
Source: OSHA inspection citations (violation_detail). CFR section codes can be looked up at osha.gov/laws-regs for the formal standard text. Per-inspection detail and the specific violation descriptions are available by expanding individual inspections below.
Peer comparison
Worse on violations than nearly every other employer. Peer group: 75,927 employers. This establishment has 42 OSHA violations; peer median is 1.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for KOPPERS CO INC. Verify directly with OSHA Injury Tracking Application →
Inspection breakdown
Complaint- and accident-triggered inspections are stronger risk signals than routine planned inspections.
OSHA severe injury reports
No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for KOPPERS CO INC. Verify directly with Occupational Safety and Health Administration →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 46+ years. Most recent activity: 46 years ago. Data on this page is refreshed weekly.
Wage & Hour Division (WHD)
No WHD wage, overtime, or child-labor enforcement cases on file for KOPPERS CO INC. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
No MSHA mine safety violations on file for KOPPERS CO INC. Verify directly with Mine Safety and Health Administration →
Labor relations (NLRB)
Company-level in IL — for KOPPERS CO INC, not this location alone
National Labor Relations Board — unfair labor practice charges and union representation cases. The NLRB records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other KOPPERS CO INC locations in the same state.
NLRB cases
National Labor Relations Board cases involving this employer. Includes unfair labor practice (ULP) filings and representation election proceedings. NLRB enforcement is process-driven; no per-case monetary penalty is assessed (remedies are case-by-case backpay orders, posting requirements, election re-runs, etc.). 8 cases · 8 ULP
| Case number | Type | Filed | Closed | Status | Region |
|---|---|---|---|---|---|
| 25-CA-360537 | Unfair labor practice | Feb 2025 | — | Open | Region 25, Indianapolis, Indiana |
| 13-CA-308486 | Unfair labor practice | Dec 2022 | Jan 2023 | Closed | Region 13, Chicago, Illinois |
| 13-CA-293074 | Unfair labor practice | Mar 2022 | Sep 2025 | Closed | Region 13, Chicago, Illinois |
| 13-CA-292792 | Unfair labor practice | Mar 2022 | Jun 2022 | Closed | Region 13, Chicago, Illinois |
| 13-CA-257598 | Unfair labor practice | Mar 2020 | Sep 2020 | Closed | Region 13, Chicago, Illinois |
| 13-CA-171094 | Unfair labor practice | Mar 2016 | Sep 2017 | Closed | Region 13, Chicago, Illinois |
| 25-CA-120689 | Unfair labor practice | Jan 2014 | Mar 2014 | Closed | Region 25, Indianapolis, Indiana |
| 13-CA-043440 | Unfair labor practice | Jun 2006 | Jan 2007 | Closed | Region 13, Chicago, Illinois |
Source: NLRB case files. Rows shown are those the agency has published. Region numbers (1–31) correspond to NLRB's geographic offices.
Visa & labor certification (OFLC) — historical
No H-1B, H-2A, or H-2B labor condition applications on file (historical data only — DOL ended OFLC publication) for KOPPERS CO INC. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for KOPPERS CO INC. Verify directly with Environmental Protection Agency →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 1980-03-25 | Follow-up | 0 | — | $0 | |
| 1979-09-06 | Follow-up | 0 | — | $0 | |
| 1979-08-03 | Complaint | 7 | 5 | $1,350 | |
| 1979-06-21 | Complaint | 3 | 3 | $1,040 | |
| 1977-09-19 | Planned | 20 | 3 | $1,380 | |
| 1977-05-02 | Complaint | 12 | 12 | $1,310 |
Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.
In the news
Related searches
- Employers in ILState-wide enforcement data
About this data
This profile aggregates federal enforcement records on KOPPERS CO INC from every major federal compliance and enforcement source. OSHA workplace safety inspections, WHD wage cases, MSHA mine safety, EPA environmental enforcement, NLRB labor relations, OFLC visa/labor certification, FMCSA motor carrier registration, SAM.gov debarments, CMS nursing-home records, BLS industry safety benchmarks, OSHA ITA self-reported injury rates, SEC enforcement and financial disclosures, CPSC and NHTSA recalls.
Establishments are matched across agencies using normalized employer name, state, and ZIP code.
OSHA citations typically appear 3–8 months after the inspection, so very recent enforcement actions may not yet be reflected. Profiles may be incomplete if the establishment operates under multiple legal names or files under variations our entity-matching rules don’t yet cover. To report a missing record or correction, email corrections@fastdol.com.
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Contact sales →Frequently asked
- What is KOPPERS CO INC's OSHA violation history?
- KOPPERS CO INC has 6 OSHA inspections on record with 42 violations and $5,080 in total penalties.