Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: NATIONAL BIG-4

Complaint inspection · Safety discipline

On , OSHA opened a complaint safety inspection of NATIONAL BIG-4 in 215 N CARLISLE AVE, SOMERTON, AZ 85350 (NAICS 000000). OSHA activity number 108190521.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Establishment
NATIONAL BIG-4
Site address
215 N CARLISLE AVE
City
SOMERTON
State
AZ
ZIP
85350
Mailing
3454 N SAN MARCOS PL STE B-6, CHANDLER, AZ 85224
Inspection type
Complaint (B)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
000000
SIC code (legacy)
1799
Employees
4
Ownership type
A
Industry flags
Construction safety.

2 citations on file for this inspection.

1926.403 B01

Serious Gravity 05 1 instance 4 exposed
Issued
Oct 10, 1990
Abate by
Sep 23, 1990
Penalty
Initial $200 · Current $200

1926.552 B01 II

Other-than-serious Gravity 01 1 instance 1 exposed
Issued
Oct 10, 1990
Abate by
Sep 23, 1990

View National BIG-4's full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 108190521.

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