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Zajac, LLC: OSHA inspections and violations

Littleton, Massachusetts · Plumbing, Heating, and Air-Conditioning Contractors · NAICS 238220

1inspections
3citation items
$9,640current penalties
Mar 16, 2026last inspection

OSHA has inspected Zajac, LLC once in Massachusetts.

The inspection began on Mar 16, 2026 on a referral, in Littleton.

That inspection ended with 3 citation items: 2 serious and 1 other-than-serious.

Penalties were first proposed at $19,280 and now stand at $9,640, 50% lower after settlements or reviews.

Lockout/tagout comes up most often in these citations: 3 items under 1910.147.

How that compares: the median penalty per cited inspection for construction employers since 2015 is $3,080, and Zajac, LLC averages $9,640 (1 cited inspection).

Zajac, LLC: OSHA citation items per year, 2026 to 2026
Citation items per year, by inspection date.

Massachusetts · latest 90 days of OSHA records

242employers cited

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Inspection history

Inspection 348809617 OPENED MAR 16, 2026Closed

Referral · Partial · Safety · 30 employees at the site · Closed Jun 9, 2026

Patriot Beverages Llc 20 Harvard Road, Littleton, MA 01460 · Plumbing, Heating, and Air-Conditioning Contractors · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 1910.147(c)(4)(i) · Lockout/tagout
 Serious$9,268$4,634Apr 23, 2026Final
Citation 1, item 2
29 CFR 1910.147(c)(7)(i) · Lockout/tagout
 Serious$9,268$4,634Apr 23, 2026Final
Citation 2, item 1
29 CFR 1910.147(c)(6)(ii) · Lockout/tagout
 Other-than-serious$744$372Apr 23, 2026Final

The rules behind these citations

Current text from the Code of Federal Regulations. Some citations were issued under older wording.

29 CFR 1910.147 · Lockout/tagout

29 CFR 1910.147(c)(4)(i)

(4) Energy control procedure. (i) Procedures shall be developed, documented and utilized for the control of potentially hazardous energy when employees are engaged in the activities covered by this section.

29 CFR 1910.147(c)(6)(ii)

(ii) The employer shall certify that the periodic inspections have been performed. The certification shall identify the machine or equipment on which the energy control procedure was being utilized, the date of the inspection, the employees included in the inspection, and the person performing the inspection.

29 CFR 1910.147(c)(7)(i)

(7) Training and communication. (i) The employer shall provide training to ensure that the purpose and function of the energy control program are understood by employees and that the knowledge and skills required for the safe application, usage, and removal of the energy controls are acquired by employees. The training shall include the following:

Other plumbing, heating, and air-conditioning contractors employers in Massachusetts

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Source: U.S. Department of Labor, OSHA enforcement data. A citation is OSHA's allegation; employers can contest it, and the status column shows where each item stands. Something wrong on this page? Tell us.