What this is
What does refrigeration contractor verification cover?
What does refrigeration contractor verification cover?
Confirmation before engagement that the contractor holds the certifications required for the refrigerant and system involved, has demonstrable capability for the specific work, and has safety arrangements compatible with the site's, including where a process safety management programme applies.
Why does the refrigerant matter?
Because it determines which regime applies. Anhydrous ammonia at or above the threshold quantity brings the process safety management standard with its explicit contractor requirements. HFCs and other regulated refrigerants bring technician certification and leak repair obligations. A contractor competent on one may have no standing under the other.
Scope
When is a refrigeration contractor verification required?
This verifies a contractor before engagement and at intervals. It does not authorise a specific job.
Use this template when
- Before engaging a refrigeration contractor for installation, service, modification or decommissioning
- Periodic re-verification of an existing contractor, at an interval set by risk and performance
- Where the system contains a regulated refrigerant requiring certified technicians
- Where the process is covered by process safety management and contractor obligations apply
- Following an incident, near miss or quality problem involving the contractor
Do not use it for
- The permit to work, which authorises a specific job on a specific day
- Process safety management contractor training records, which the contract employer holds per employee
- The mechanical integrity programme, which covers inspection and testing of the process equipment
- Refrigerant leak records and reporting, which are an ongoing compliance activity
- The site induction, which covers the individuals attending rather than the company
Compliance mapping
Which ISO 45001 cl.8.1 requirements does this satisfy?
Refrigeration contractor work sits across a process safety standard, a refrigerant regime and general contractor management duties.
| Clause | Requirement | Where it lands |
|---|---|---|
| 1910.119(h)(2) | Host to obtain and evaluate contractor safety performance, inform of process hazards, and periodically evaluate performance | Header |
| 1910.119(h)(3) | Contract employer to train employees in safe work practices and hazards, and document each employee's understanding | Capability |
| 1910.119 Appendix A | Anhydrous ammonia threshold quantity of 10,000 pounds bringing a process within PSM coverage | Header |
| 40 CFR Part 82 Subpart F | Section 608 technician certification by equipment type, and refrigerant handling and leak repair requirements | Certification |
| EPA Risk Management Program | 40 CFR Part 68 requirements where threshold quantities of regulated substances are present | Safety arrangements |
| ISO 45001 cl.8.1.4 | Control of externally provided processes, products and services, and coordination with contractors | Safety arrangements |
| 1910.147(f)(2) | Energy control information exchange between host and contract employers | Safety arrangements |
| 1910.146(c)(8) | Confined space information exchange, which applies where refrigeration work involves permit spaces | Safety arrangements |
What it does not cover
- Permit to work, which authorises the specific activity on the day.
- Contractor employee training records under PSM, which the contract employer holds and documents per person.
- The mechanical integrity programme, covering inspection and testing of process equipment.
- Refrigerant leak detection, repair and reporting records, which are ongoing obligations.
- Site induction records, which attach to the individuals attending.
How to complete it
How to complete a refrigeration contractor verification, step by step
Three questions, and the third is the one that gets skipped once a contractor becomes familiar.
Refrigerant type and charge quantity determine whether process safety management applies, whether the Risk Management Program applies, and which technician certification is required. An ammonia system above the threshold quantity is a fundamentally different engagement from an HFC split system, and the verification should be scoped from that determination rather than from a standard form.
Installation, routine service, major modification, emergency response and decommissioning require different experience. A contractor competent at planned maintenance may have no experience of a pump-out or a system breach. Ask what comparable work they have performed and on what systems, and be specific about the work in question.
Process safety management requires the host to inform contractors of the process hazards and the applicable emergency action plan, and requires the contract employer to advise the host of hazards its own work presents. The second direction is frequently missing, and it is where a contractor's hot work, isolation or system breach introduces a hazard the site has not planned for.
Certification, PSM training documentation and site induction all attach to people. Confirm which technicians are attending, that their certification covers the equipment type, and that their training is documented. Familiar contractors send unfamiliar people, and the check on the day is what the whole verification depends on.
What auditors find
Most common refrigeration contractor verification findings
Findings here concentrate on the gap between the verified company and the attending person.
| Finding | Clause | What fixes it |
|---|---|---|
| Company verified but attending technicians' certification not checked. | 40 CFR 82 Subpart F | Certification attaches to individuals by equipment type; check at the gate. |
| PSM contractor obligations not applied because coverage was not determined. | 1910.119 App A | Establish charge quantity; ammonia at or above 10,000 lb brings the process within PSM. |
| Contractor employee training under PSM not documented per person. | 1910.119(h)(3) | The contract employer must document that each employee received and understood the training. |
| Process hazard information not provided to the contractor. | 1910.119(h)(2)(i) | Inform of known potential fire, explosion and toxic release hazards before work begins. |
| Contractor performance not evaluated periodically. | 1910.119(h)(2)(iv) | Periodic evaluation is an explicit host obligation, not an optional review. |
| Subcontracted labour arriving without the principal contractor disclosing it. | ISO 45001 cl.8.1.4 | Require disclosure of subcontracting and apply the same verification to it. |
| Energy control information not exchanged before isolation work. | 1910.147(f)(2) | Exchange in both directions; the contractor's procedures and yours must be compatible. |
| Confined space entry performed without the two-way information exchange. | 1910.146(c)(8) | Refrigeration work frequently involves permit spaces; the exchange is required. |
| Emergency action plan not communicated to attending technicians. | 1910.119(h)(2)(ii) | Explain the plan; ammonia release response differs materially from a general evacuation. |
| Verification not repeated after a change of contractor ownership or key personnel. | ISO 45001 cl.8.1.4 | Capability sits with people; ownership and staff changes are re-verification triggers. |
Case in point
Case in point: the familiar contractor and the new engineer
A cold store used the same refrigeration contractor for eleven years. The company was verified annually: insurance current, accreditation held, safety statistics good, references excellent. The verification file was thorough and up to date.
For a routine service the contractor sent an engineer who had joined three months earlier. He held valid technician certification. He had not received the site's process safety management contractor training, had not been briefed on the ammonia emergency action plan, and had never been on the site before. Reception knew the company van and waved it through.
Nothing went wrong. But had a release occurred, the site would have had a person in the plant room who did not know where the emergency shutdown was, whose training the site could not evidence, and whose presence its own verification process had never registered.
The template
The template, field by field
The form exactly as it installs. Every field, option, score and conditional rule is editable, and the links to other templates come with it.
5 sections
- Reference
- CON-044
- Archetype
- Checklist
- Record ID
- RCV-2026-000
- Scoring
- Verified status
- Direction
- High is good
- Singleton
- Yes
- Basis
- ISO 45001 cl.8.1
- Links
- Links Ammonia review, Refrigerant records
- Tags
- Contractor, Refrigeration
- Sections
- 5
- Fields
- 40
- Follow up fields
- 3
- Repeating sections
- 0
- Links out
- 3
Header
9 fieldsVerification ID*
Auto sequence. Format RCV-2026-000.
The record's own ID. Other templates point at this value.
Status*
Drives who this goes to next.
- Planned2 pts
- In progress2 pts
- Complete3 pts
- Deferred0 pts
- Open0 pts
- Closed3 pts
- Overdue0 pts
Date and Time*
Completed By*
Site*
Site ID*
Format SITE-000.
Links to FDN-001 Site ID
Contractor*
Vendor ID*
Format VEN-0000.
Links to FDN-005 Vendor ID
The One Contractor Who Can Empty The Building
Refrigeration work can kill people and destroy a week of product in the same incident. This verification is deliberately harder than the others.
Certification
6 fieldsRefrigerant Handling Certification Current*
- Yes2 pts
- No0 pts
- N/Aexcluded from denominator
Ammonia Specific Competence Evidenced*
- Yes3 pts
- Partly1 pt
- No0 pts
Pressure Systems Competence Evidenced*
- Yes3 pts
- Partly1 pt
- No0 pts
Electrical Competence Where Needed*
- Yes3 pts
- Partly1 pt
- No0 pts
Confined Space Competence Where Needed*
- Yes3 pts
- Partly1 pt
- No0 pts
Individual Certificates Verified*
- Yes2 pts
- No0 pts
- N/Aexcluded from denominator
Capability
6 fieldsUnderstands Our Plant Configuration*
- Yes3 pts
- Partly1 pt
- No0 pts
Familiar With Our Isolation Arrangements*
- Yes3 pts
- Partly1 pt
- No0 pts
Can Attend Within Agreed Response Time*
- Yes3 pts
- Partly1 pt
- No0 pts
Out Of Hours Capability Evidenced*
- Yes3 pts
- Partly1 pt
- No0 pts
Spares Availability Evidenced*
- Yes3 pts
- Partly1 pt
- No0 pts
Emergency Support Arrangements Defined*
- Yes3 pts
- Partly1 pt
- No0 pts
Safety arrangements
6 fieldsOwn Rescue Arrangements Where Required*
- Yes2 pts
- No0 pts
- N/Aexcluded from denominator
Escape Breathing Apparatus Carried*
- Yes3 pts
- Partly1 pt
- No0 pts
Gas Detection Carried And Calibrated*
- Yes2 pts
- No0 pts
- N/Aexcluded from denominator
Leak Response Procedure Provided*
- Yes3 pts
- Partly1 pt
- No0 pts
Reports Leaks To Us Immediately*
- Yes3 pts
- Partly1 pt
- No0 pts
Refrigerant Records Provided To Us*
- Yes3 pts
- Partly1 pt
- No0 pts
Result
13 fieldsItems Assessed*
Excludes anything marked N/A.
Items Failed*
Score Percent*
Calculated on submission. High is good. N/A items leave the denominator.
Result Band*
- Pass3 pts
- Caution1 pt
- Fail0 pts
Completeness Percent*
How much of the template was actually answered. A high score on a half completed form is not a high score.
Action Required*
Raise the action record, then enter its reference here.
- No2 pts
- Yes0 pts
Priority
- High0 pts
- Medium1 pt
- Low3 pts
CAPA ID
Format CAPA-2026-00000.
Links to FDN-014 CAPA ID
Action Owner
Engineering Manager*
Signature*
Site Manager*
Second Signature*
CON-044 · record IDs look like RCV-2026-000 · Links Ammonia review, Refrigerant records
Open in KnowellaRun it with agents
From a document you fill in to a programme that runs itself
The verification covers a company. What fails is the technician who arrived instead, and the exchange that only ran one way.
Holds company verification alongside individual certification and induction, and checks the people attending rather than the organisation engaged.
Runs the two-way hazard information exchange required under process safety management, energy control and confined space provisions.
Links contractor work to the asset and its mechanical integrity record, so service history stays with the system rather than the supplier.
Flags where a familiar contractor has sent personnel with no induction or documented training, which routine access control does not detect.
This template lives in KnowContractor — contractor management. Prequalification, approval, induction, permits and performance.
Meet KnowContractor→Glossary
Refrigeration Contractor Verification definitions and key terms
- Threshold quantity
- The amount of a highly hazardous chemical bringing a process within PSM coverage. For anhydrous ammonia it is 10,000 pounds.
- Section 608 certification
- EPA technician certification for handling refrigerants, issued by equipment type and held by individuals.
- Contract employer
- Under PSM, the employer of contractor personnel, with obligations to train and document its own employees.
- Host employer
- The site operator, obliged under PSM to evaluate contractor safety performance, inform of hazards and periodically evaluate.
- Risk Management Program
- EPA requirements under 40 CFR Part 68 where threshold quantities of regulated substances are present.
- Pump-out
- Removal of refrigerant from part of a system before work, a high-risk operation requiring specific competence.
- Mechanical integrity
- The PSM element covering inspection, testing and maintenance of process equipment, distinct from contractor management.
- Emergency action plan
- The site plan for release response, which contractors must be informed of before working in a covered process.
FAQ
Frequently asked questions about refrigeration contractor verification
When does process safety management apply to a refrigeration system?+
When the process contains a highly hazardous chemical at or above its threshold quantity. For anhydrous ammonia that is 10,000 pounds. Above it, the full PSM standard applies including the contractor requirements at 1910.119(h), which impose duties on both the host and the contract employer.
What must the host do about contractors under PSM?+
Obtain and evaluate information on the contractor's safety performance and programmes, inform them of known potential fire, explosion and toxic release hazards, explain the applicable emergency action plan, develop and implement safe work practices for contractor access, and periodically evaluate contractor performance. Each is explicit and each is separately citable.
What must the contractor do?+
Assure that its employees are trained in the work practices necessary to perform the job safely, that they know the process hazards and the emergency action plan, and that each employee has received and understood the training, with documentation identifying the employee, the date and the means used to verify understanding.
Does verifying the company cover the technicians?+
No, and this is the central gap. EPA technician certification attaches to individuals by equipment type. PSM contractor training must be documented per employee. Site induction attaches to individuals. A verified company can send a technician who holds none of it, and familiar contractors are precisely the ones whose people are least often checked.
What else does refrigeration work usually involve?+
Frequently confined space entry, energy control, work at height and hot work, sometimes all within one job. Each carries its own contractor information exchange requirement, and the verification should confirm the contractor's arrangements are compatible with yours rather than assuming the refrigeration competence covers them.
Keep going
Related templates and programmes
Industries this is written for
Programmes this belongs to
Used together in Pressure Systems and Refrigeration
Environmental Aspects Register
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Refrigeration Unit Service Record
Records service and performance testing of a transport refrigeration unit, including temperature pull down and refrigerant
Boiler Operation Record
Records boiler operating parameters, water treatment results and blowdown through a shift
Refrigeration Plant Log
Records suction and discharge pressures, temperatures, oil levels and run hours across the refrigeration plant
Water Treatment Record
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Legionella Control Record
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Written and reviewed by
Siddarth Singh
Founder & Chief Executive Officer, Knowella
Certified Safety Professional and industrial and systems engineer with more than a decade inside food supply chain, freight and manufacturing operations. This page was written against the current text of the standards it cites, not against secondary summaries of them.
- Certified Safety Professional (CSP), Board of Certified Safety Professionals
- MBA, University of Chicago Booth School of Business
- MS and BS, The Ohio State University, Industrial and Systems Engineering
- Six Sigma Black Belt
Sources and last review. Reviewed 16 August 2026 against:
- 29 CFR 1910.119, process safety management of highly hazardous chemicals, including (h) contractors, OSHA
- 29 CFR 1910.119 Appendix A, list of highly hazardous chemicals and threshold quantities
- 40 CFR Part 82 Subpart F, recycling and emissions reduction, technician certification, EPA
- 40 CFR Part 68, chemical accident prevention provisions, EPA
- 29 CFR 1910.147(f)(2) and 1910.146(c)(8), contractor information exchange, OSHA
This page is general guidance, not legal advice. Confirm requirements with your jurisdiction’s regulator.