Mitsubishi Cement Corporation safety record at a glance
Mitsubishi Cement Corporation has been the subject of 21 Cal/OSHA inspections in California since 2000, opened between Apr 20, 2005 and Aug 19, 2025. 12 of them were planned inspections. 14 of them produced citations, 29 in all: 2 serious. Inspectors proposed $59,920 in penalties; after appeals and settlements the current total is $42,530. The largest single penalty, $18,000, came from an inspection opened Mar 16, 2020 in Lucerne Valley. That places the employer at #2,014 of 122,854 California employers in the database by penalties.
Industry as coded by the inspecting office: Mining, Quarrying, and Oil and Gas Extraction; Manufacturing. Worksites in Lucerne Valley.
Every inspection, newest first
Click a date for the citations in that inspection.
| Opened | City | Why | Result | Proposed | Penalty | Closed |
|---|---|---|---|---|---|---|
| Aug 19, 2025 | Lucerne Valley | Planned | 1 citation | $375 | $375 | Feb 17, 2026 |
| Dec 13, 2021 | Lucerne Valley | Planned | 5 citations | $1,600 | $1,600 | Apr 21, 2022 |
| Mar 16, 2020 | Lucerne Valley | Accident | 1 citation | $22,500 | $18,000 | Dec 10, 2024 |
| Oct 23, 2019 | Lucerne Valley | Planned | 4 citations | $1,050 | $1,050 | May 12, 2020 |
| Nov 14, 2018 | Lucerne Valley | Planned | 2 citations | $485 | $485 | Mar 19, 2019 |
| Nov 28, 2017 | Lucerne Valley | Planned | 1 citation | $150 | $150 | Jan 8, 2018 |
| Jun 13, 2016 | Lucerne Valley | Planned | 3 citations | $525 | $525 | Aug 3, 2016 |
| Mar 2, 2015 | Lucerne Valley | Unprogrammed related | no citations | 0 | 0 | Jun 4, 2015 |
| Dec 19, 2014 | Lucerne Valley | Planned | no citations | 0 | 0 | Mar 4, 2015 |
| Oct 22, 2013 | Lucerne Valley | Unprogrammed related | no citations | 0 | 0 | Apr 4, 2014 |
| Dec 17, 2012 | Lucerne Valley | Unprogrammed related | no citations | 0 | 0 | Jan 16, 2013 |
| Jul 10, 2012 | Lucerne Valley | Planned | 2 citations | $560 | $560 | Sep 13, 2012 |
| Aug 23, 2011 | Lucerne Valley | Unprogrammed related | no citations | 0 | 0 | Sep 1, 2011 |
| Jul 21, 2010 | Lucerne Valley | Planned | 1 citation | $300 | $300 | Sep 27, 2010 |
| Jun 9, 2009 | Lucerne Valley | Planned | 1 citation | $400 | $400 | Aug 5, 2009 |
| Mar 5, 2009 | Lucerne Valley | Follow-up | no citations | 0 | 0 | Mar 19, 2009 |
| Jul 4, 2008 | Lucerne Valley | Programmed related | 1 citation | $485 | $485 | Dec 23, 2009 |
| Jun 4, 2008 | Lucerne Valley | Planned | no citations | 0 | 0 | Jun 30, 2008 |
| Jan 28, 2008 | Lucerne Valley | Programmed related | 1 citation | $240 | $150 | Mar 4, 2009 |
| Aug 21, 2006 | Lucerne Valley | Programmed related | 4 citations 2 serious | $30,800 | $18,000 | Feb 9, 2010 |
| Apr 20, 2005 | Lucerne Valley | Planned | 2 citations | $450 | $450 | Jul 22, 2005 |
Also recorded as: Mitsubishi Cement; Mitsubishi Cement Corp.
The rules this employer was cited under
- 8 CCR 1632, Floor, roof and wall openings: 2 citations, 2 serious, $18,000
- 8 CCR 2340.22: 2 citations, $600
- 8 CCR 3328, Machinery and equipment, general: 2 citations, $600
- 8 CCR 3942: 2 citations, $550
- 8 CCR 5157, Confined spaces: 2 citations, $450
- 8 CCR 2340.16, Electrical work space: 2 citations, $350
- 8 CCR 3380, Personal protective equipment: 1 citation, $18,000
- 8 CCR 3210, Guardrails at elevated locations: 1 citation, $485
Accidents investigated
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 Mitsubishi Cement Corporation
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.