Cal/OSHA Center
Serious injury, illness or death: report within 8 hours
8 CCR 342 requires reporting to Cal/OSHA (DOSH) immediately, meaning as soon as practically possible and no later than 8 hours after the employer knows, or with diligent inquiry would have known. Only with exigent circumstances it may be up to 24 hours. Report by phone or the online mechanism the Division provides. This is in addition to any report a prime contractor requires.
Serious (8 CCR 330(h)): inpatient hospitalization for other than medical observation or diagnostic testing, an amputation, the loss of an eye, or any serious degree of permanent disfigurement. A crash on a public street or highway is excluded unless it happened in a construction zone.
Have this ready when you call (8 CCR 342(c)):
- Time and date of the accident
- Employer's name, address and phone
- Name and job title (or badge number) of the person reporting
- Address of the accident site
- Name of the contact person at the site
- Name and address of the injured employee(s)
- Nature of the injury
- Where the injured employee(s) were taken
- Other law enforcement agencies at the site
- What happened, and whether the scene or equipment has been altered
Then file the incident in this portal so the investigation, Cal/OSHA 300 entry (within 7 calendar days) and corrective actions are tracked.
Injury and Illness Prevention Program (IIPP)
Every employer keeps a written, working IIPP: who is responsible, how compliance is ensured, hazard communication without fear of reprisal, scheduled inspections, injury investigation, timely correction, and training (new hires, new assignments, new hazards, supervisors).
Construction Safety Orders IIPP section for construction employers.
Records
Keep inspection records and training records at least 1 year (3203(b)). Give an employee or their representative access to the IIPP within 5 business days of a request (3203(a)(8)).
Safety instructions for employees.
Emergency medical services on construction sites.
Heat illness prevention (outdoor)
Construction is on the list of industries that must follow every part of 3395, including high-heat procedures.
Water
Fresh, pure, suitably cool and free, as close as practicable, enough for 1 quart per employee per hour for the whole shift (or effective replenishment). Encourage frequent drinking.
Shade
Shade must be present when it is over 80 degrees F, enough for everyone on rest or recovery. Below 80 F, provide shade or timely access on request. Cool-down rests are allowed at any time: monitor the worker and no less than 5 minutes in the shade.
High heat, 95 F or more
Effective communication, observation (supervisor for 20 or fewer, buddy system, or regular contact), a designated person to call EMS, reminders to drink water, and a pre-shift meeting on high-heat procedures.
Acclimatization
Close observation during a heat wave, and for the first 14 days for anyone newly assigned to a high-heat area.
Plan and training
Written Heat Illness Prevention Plan in English and the language most employees understand, available at the site. Train every employee and supervisor before heat exposure.
Indoor places of employment have their own heat standard (electrical rooms, buildings under construction without cooling).
Electrical Safety Orders
The low-voltage rules for electrical installations and work.
General requirements for work on low-voltage electrical equipment and systems.
No work on exposed energized parts until responsible supervision has decided the work is done energized, the crew has been instructed on the techniques and hazards, and suitable PPE and safeguards (approved insulated gloves or tools) are provided and used.
Before work on de-energized equipment, an authorized person notifies everyone involved and locks the disconnecting means open (padlock or other positive method), plus the other steps in the section.
Working space about electric equipment.
The high-voltage rules.
High-voltage general provisions: safe access to every work location, the employer furnishes and tests safety devices, and employees inspect each device, tool and piece of equipment every time it is used.
Control of hazardous energy (lockout/tagout) for cleaning, repairing, servicing, setting up and adjusting machinery and equipment.
Other Title 8 rules electrical crews use daily
Personal fall arrest, restraint and positioning.
Portable ladders.
Metal scaffolds.
Protective systems for excavations and trenches.
Lead in construction.
Hazard communication.
Personal protective devices.
Portable fire extinguishers.
Cal/OSHA injury records (Log 300, 300A, 301)
Use the Cal/OSHA Form 300 (log), 300A (annual summary) and 301 (incident report), or equivalent forms. Enter each recordable case within 7 calendar days of learning about it.
At year end review the 300, complete and certify the 300A, and post it from February 1 to April 30.
Plain-language guide checked against dir.ca.gov on 2026-10-20. The regulation text governs; confirm current text before relying on it.