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

OSHA Inspection: MASTER FAB INC

Complaint inspection · Safety discipline

On , OSHA opened a complaint safety inspection of MASTER FAB INC in 1440 SOUTH VINEYARD AVENUE, ONTARIO, CA 91761 (NAICS 000000). OSHA activity number 125890590.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
MASTER FAB INC
Site address
1440 SOUTH VINEYARD AVENUE
City
ONTARIO
State
CA
ZIP
91761
Inspection type
Complaint (B)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Data loaded
NAICS code
000000
SIC code (legacy)
3444
Employees
11
Ownership type
A

3 citations on file for this inspection.

3203 B02

Other-than-serious Gravity 01 1 instance
Issued
Apr 25, 1998
Abate by
Apr 29, 1998
Penalty
Initial $150 · Current $150

4070 A

Serious Gravity 03 1 instance 5 exposed
Issued
Apr 23, 1998
Abate by
May 6, 1998
Penalty
Initial $375 · Current $375

4075 A

Serious Gravity 03 1 instance 5 exposed
Issued
Apr 23, 1998
Abate by
May 6, 1998
Penalty
Initial $375 · Current $375

View Master FAB INC'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 125890590.

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