Ceradyne Inc safety record at a glance
Ceradyne Inc has been the subject of 9 Cal/OSHA inspections in California since 2000, opened between Feb 23, 2001 and Sep 17, 2009. 4 of them were complaint inspections. 5 of them produced citations, 8 in all: 1 serious. Inspectors proposed $25,330 in penalties; after appeals and settlements the current total is $21,055. The largest single penalty, $18,000, came from an inspection opened Nov 24, 2008 in Irvine. 1 worker death was investigated. That places the employer at #6,204 of 122,854 California employers in the database by penalties. The same employer has 1 WARN layoff notice on file with the EDD.
Industry as coded by the inspecting office: Manufacturing. Worksites in Irvine, Costa Mesa.
Every inspection, newest first
Click a date for the citations in that inspection.
| Opened | City | Why | Result | Proposed | Penalty | Closed |
|---|---|---|---|---|---|---|
| Sep 17, 2009 | Irvine | Complaint | no citations | 0 | 0 | Feb 4, 2010 |
| Aug 25, 2009 | Costa Mesa | Complaint | no citations | 0 | 0 | Dec 8, 2009 |
| May 15, 2009 | Irvine | Accident | 1 citation | $280 | 0 | Jan 22, 2016 |
| Nov 24, 2008 | Irvine | Accident | death 2 citations 1 serious | $18,560 | $18,000 | Feb 17, 2011 |
| Aug 28, 2008 | Irvine | Complaint | no citations | 0 | 0 | Aug 28, 2009 |
| May 16, 2008 | Costa Mesa | Planned | no citations | 0 | 0 | Jul 29, 2008 |
| Mar 24, 2008 | Irvine | Accident | 1 citation | $5,000 | $2,500 | May 28, 2009 |
| Sep 21, 2005 | Costa Mesa | Complaint | 3 citations | $555 | $555 | Jan 23, 2007 |
| Feb 23, 2001 | Costa Mesa | Planned | 1 citation | $935 | 0 | Oct 18, 2001 |
Also recorded as: Ceradyne; Ceradyne, Inc.
The rules this employer was cited under
- 8 CCR 5144, Respiratory protection: 3 citations, $555
- 8 CCR 3577: 1 citation, 1 serious, $18,000
- 8 CCR 342, Reporting serious injuries and deaths: 1 citation, $2,500
- 8 CCR 3204: 1 citation
- 8 CCR 3580: 1 citation
- 8 CCR 3272: 1 citation
Accidents investigated
Local pages: Irvine employment lawyer, Costa Mesa employment lawyer.
How to read this record
Each row is one inspection by Cal/OSHA (or, rarely, federal OSHA) of one worksite. Why is the reason it was opened. Proposed is the penalty the inspector assessed; penalty is the current figure after any appeal or settlement. "Serious" means a realistic possibility of death or serious harm; "willful" and "repeat" carry penalties up to $162,851 each.
Citations document that the employer was told, in writing, what the rule required and when. That knowledge is often the center of a retaliation case: a worker who complained about the hazard an inspector later cited, and was then fired or cut, has a Labor Code 6310 claim, with lost wages and attorney's fees.
Full explainer: how to read a Cal/OSHA record.
If you work, or worked, at Ceradyne Inc
Write down what you reported, to whom and when, and what changed afterward: shifts, pay, duties, write-ups. Request the inspection file from the Cal/OSHA district office using the activity number on the inspection page. An injury goes through workers' compensation; a firing, demotion or threat after a safety complaint or injury report is an employment claim with a one-year deadline at the Labor Commissioner (Labor Code 6310) and a longer one in court. Free, confidential review: (800) 371-3088 or send what you have.
Source: U.S. Department of Labor OSHA enforcement data, California inspections. Record last checked Nov 1, 2026. Back to the safety tracker.
About this data: Records come from the U.S. Department of Labor's OSHA enforcement datasets (inspection, violation, accident and accident injury tables), which carry Cal/OSHA's state-plan inspections alongside federal ones. We load every inspection of a California worksite opened since January 1, 2000 and refresh it weekly. Employer names, addresses and industry codes are as the inspecting office recorded them; similar names are grouped where they clearly refer to the same employer. A citation can be reduced, vacated or withdrawn on appeal, and an inspection can stay open for months, so a record can change. Penalties shown as "current" reflect the latest status in the federal file. This page is public information about the employer's regulatory record, not legal advice and not a statement that any person was harmed or any law broken beyond what the record states.