Safety Consulting San Diego

San Diego County has 5,560 specialty trade contractor establishments, and a contractor here can change regulators at a gate. Inside Camp Pendleton, federal OSHA covers private employers. The same crew working off base that week is back under Cal/OSHA, where fall protection under 8 CCR 1670 and construction silica under 8 CCR 1532.3 sit at the center of the program. Around the jobsites are the shipyards, where Cal/OSHA's authority stops partway across the site, a science-driven manufacturing base and nursery and greenhouse agriculture. M Squared Safety Solutions, Inc. works San Diego County from San Clemente. Call 949-954-6581.

Who you'll work with: M Squared Safety is run by Matt Horovitz from our San Clemente office, with twenty plus years managing contractor safety programs. More about us.

The Cal/OSHA offices that cover San Diego County

One enforcement office covers the whole county: the San Diego District Office, 7575 Metropolitan Dr., Suite 207, San Diego, (619) 767-2280, under the Region 3 Santa Ana Regional Office, per the Cal/OSHA district office directory. Otay Mesa, Carlsbad and Escondido zip codes all return it in DIR's office lookup.

Consultation is a separate office at the same address: Consultation Region 7, 7575 Metropolitan Drive, Suite 204, covering Imperial and San Diego counties, per DIR's consultation office listing. Note the different suite number.

Two regulators on one shipyard

Ship and boat building employs 6,622 people across 53 San Diego County establishments in BLS QCEW 2025 data, far more concentrated than in California as a whole. The work means hot work, confined space entry in tanks and voids, shipfitting, blasting and coating.

But DIR's Cal/OSHA jurisdiction page assigns shipbuilding, shipbreaking and ship repair on vessels afloat, and in graving docks or dry docks, to federal OSHA. Cal/OSHA's Ship Building, Ship Repairing and Ship Breaking Safety Orders, with their IIPP requirement at 8 CCR 8350, apply to the landside and non-afloat portions. A shipyard employer can have two regulators on one site, and the dividing line is physical.

The same page places private sector employers within the borders of all U.S. military installations under federal OSHA. A contractor working inside the gate at Camp Pendleton and outside it the same week answers to two different agencies.

Science manufacturing, nurseries and construction

• Pharmaceutical and biotech. 8,028 jobs across 132 establishments, well above the state concentration, bringing hazardous drug handling, solvents, cryogenics and clean utility systems. The core sections are 8 CCR 5194, Hazard Communication, and 8 CCR 5144, Respiratory Protection, which ranks sixth on Cal/OSHA's most cited list. Electronics, medical devices and aerospace round out a base where industrial hygiene matters as much as guarding.
• Nursery and greenhouse agriculture. 161 establishments. The county's 2024 crop report put bedding plants and color at $395.4 million, ornamental trees and shrubs at $385.8 million and indoor flowering and foliage plants at $302.2 million, out of $1.67 billion in total value, per Times of San Diego. Greenhouses are enclosed and radiant, so both 8 CCR 3395 for outdoor heat and 8 CCR 3396 for indoor heat can apply in one operation. 8 CCR 3457, Field Sanitation, applies to all agricultural employers.
• Construction. 5,560 specialty trade contractor establishments keep fall protection under 8 CCR 1670 and construction silica under 8 CCR 1532.3 central.

Otay Mesa and the border

GSA describes the Otay Mesa Land Port of Entry as the busiest commercial port in California, handling nearly 1 million commercial trucks a year, per its fact sheet. That supports a south county cluster of cross-border trucking, drayage and transload work, a different workforce from big-box distribution. Warehousing overall is far less concentrated in San Diego than statewide.

Where we work in San Diego County

We take consulting work across the county: Oceanside, Vista, Carlsbad and San Marcos in North County, Escondido and El Cajon inland, and Chula Vista and Otay Mesa in the south. All of them return the San Diego District Office in DIR's office lookup. The work happens on site, at your jobsite or facility: inspections, training and safety staffing wherever the project is.

How M Squared helps San Diego County employers

• Written programs. An Injury and Illness Prevention Program under 8 CCR 3203, the most frequently cited Cal/OSHA standard, plus heat illness plans for indoor and outdoor work, Hazard Communication, a Code of Safe Practices and site-specific plans. For federal projects we also write Accident Prevention Plans.
• Documented inspections with findings, photographs and closure tracking.
• Fractional EHS on a monthly retainer, and site safety staffing, including Site Safety and Health Officer coverage for federal projects.
• Training, including OSHA 10-Hour and OSHA 30-Hour Construction.
• Help after a serious injury. We help you make the 8 hour report to Cal/OSHA, prepare for an inspection by the San Diego District Office, and assemble the documents the inspector requests.

Background reading: California IIPP requirements and what to expect during a Cal/OSHA inspection. Related guides for facility managers: carbon monoxide detection for parking garages and repair shops, hydrogen monitoring in battery rooms and data centers and lithium-ion battery charging areas.

San Diego County is part of our Southern California service area. To talk it through, book a call.

Common questions

Does Cal/OSHA regulate our shipyard work?

Only part of it. Shipbuilding, shipbreaking and ship repair on vessels afloat, or in graving docks or dry docks, belongs to federal OSHA. Cal/OSHA's shipyard safety orders cover the landside and non-afloat work.

Which office inspects us, and which one consults?

The San Diego District Office at 7575 Metropolitan Dr., Suite 207, handles enforcement for the whole county. Consultation Region 7 is in the same complex at Suite 204.

Do you provide onsite safety consulting in San Diego County?

Yes. The work happens at your jobsite or facility: documented inspections with photographs and closure tracking, training for your crews, and site safety staffing, including Site Safety and Health Officer coverage on federal projects. We cover the county from Oceanside and Escondido to Chula Vista and Otay Mesa.

Does Cal/OSHA cover contractors working on Camp Pendleton?

No. Private sector employers within the borders of U.S. military installations fall under federal OSHA. The same contractor working off base is under Cal/OSHA.

Do greenhouse and nursery operations need both heat standards?

Often, yes. Outdoor work falls under 8 CCR 3395 and enclosed greenhouse work can fall under 8 CCR 3396, so one operation may need both covered in its plan. Field sanitation under 8 CCR 3457 applies as well.

What should we do after a serious injury in San Diego County?

The report to Cal/OSHA is due within 8 hours of when you knew, or with diligent inquiry would have known, under 8 CCR 342, and our serious injury reporting guide covers what counts. Call us the same day at 949-954-6581. We help you report it to Cal/OSHA, get ready for the San Diego District Office inspection, and pull together the documents the inspector requests.

Send us the details

If a form is easier than a phone call, tell us about the operation and what prompted the inquiry, and we will come back to you. If it cannot wait, call 949-954-6581.

M Squared Safety Solutions, Inc., 981 Calle Negocio Suite 200, San Clemente, CA 92673, 949-954-6581.