en
Reference Packs
Menu

EU Compliance 5 min read

Contractor Onboarding: OSHA Permit-Required Confined Space Entry Checklist

Use this checklist to vet contractors before any permit-required confined space entry under OSHA 29 CFR 1910.146. It covers permits, atmospheric thresholds, attendant and entry supervisor duties, rescue arrangements and documentation that must be in place at onboarding.

Published
Updated
Contractor reviewing a permit-required confined space entry checklist at a tank opening

Contractor onboarding is where most permit-required confined space failures are decided. Long before a crew opens a manhole or enters a tank, the host employer should have verified that the contractor can meet OSHA 29 CFR 1910.146. This checklist is for that pre-entry review, and for re-verification when a new contractor, new space or new scope of work appears.

Scope and pre-qualification

1. Confirm the space meets the permit-required definition

  • Check: The contractor has applied the §1910.146(b) definition to the specific space, not to a generic type.
  • Pass: Written determination identifies a permit-required confined space because it has or has the potential for a hazardous atmosphere, engulfment, entrapment or another recognised serious hazard.

2. Confirm the host employer's designation

  • Check: The host employer has classified the space and shared that classification.
  • Pass: The contractor's entry plan matches the host's written permit-required confined space designation; no assumption that a space is non-permit.

3. Confirm the scope of work triggers entry

  • Check: The contractor has stated whether the work involves actual entry, not just adjacent work.
  • Pass: Entry is defined against §1910.146(b) — the entrant's body breaks the plane of an opening — and the plan addresses every entry point.

4. Confirm the pre-entry hazard evaluation is documented

  • Check: The contractor has completed a hazard evaluation for the specific space.
  • Pass: The evaluation lists atmospheric, physical and configuration hazards, plus any prior contents or residues.

Atmospheric testing and acceptable limits

5. Calibrate and bump-test instruments

  • Check: Gas detectors have current calibration and a pre-use bump test.
  • Pass: Records are available; the instrument is appropriate for the gases expected (oxygen, combustible, toxic).

6. Test before and during entry

  • Check: Testing is performed before entry and continuously or periodically while occupied.
  • Pass: Results are recorded on the permit and compared with the thresholds in §1910.146.

7. Apply the acceptance thresholds

  • Check: The contractor uses the OSHA thresholds, not local habit.
  • Pass: Oxygen is between 19.5% and 23.5%. Flammable gas or vapour is below 10% of the lower flammable limit. Hydrogen sulphide is at or below 10 ppm and carbon monoxide at or below 50 ppm, consistent with the substance-specific limits that underpin §1910.146 and the Appendix to §1910.146.

8. Confirm forced ventilation and re-testing

  • Check: Where testing shows a problem, ventilation is used and the atmosphere is re-tested before entry.
  • Pass: The permit records the ventilation method is appropriate residents and that re-testing has occurred.

Permit and entry team

9. Verify the entry permit content

  • Check: The permit is complete before work starts.
  • Pass: The permit identifies the space, the purpose, the date and duration, the entrants, attendants, entry supervisor, hazards, isolation, atmospheric testing results, rescue and communication arrangements, and acceptable entry conditions, consistent with §1910.146(f).

10. Confirm the entry supervisor's role

  • Check: A named entry supervisor has signed on.
  • Pass: The supervisor has verified the permit, conditions and rescue arrangements, and knows the authority to cancel entry under §1910.146(e) and (k).

11. Confirm attendant coverage

  • Check: An attendant is posted outside for the whole entry.
  • Pass: The attendant remains at the entrance, maintains an accurate entrant count, communicates with entrants senses, and summons rescue without entering, per §1910.146(i).

12. Confirm attendant is not double-tasked

  • Check: The attendant has no conflicting duties.
  • Pass: The attendant is not also the rescue entrant, not the entrant, and not assigned work that takes them away from the opening.

13. Confirm entrant training

  • Check: Entrants are trained for the specific hazards and equipment.
  • Pass: Training records show hazard recognition, equipment use, communication and self-rescue or rescue procedures, per §1910.146(g).

Isolation, purging and equipment

14. Verify lockout/tagout and isolation

  • Check: Energy sources and product lines are isolated.
  • Pass: Lockout/tagout is applied, blanks or blinds are listed on the permit, and the isolation method is recorded.

15. Verify purging, inerting or flushing

  • Check: Any cleaning or purging step is complete.
  • Pass: The methodü is recorded and the post-purge atmosphere is tested before entry.

16. Check PPE and retrieval equipment

  • Check: PPE and retrieval systems are on site.
  • Pass: Respiratory protection, harness, tripod or davit, lifeline and communication equipment match the permit and are inspected.

17. Confirm rescue arrangements

  • Check: Rescue is arranged before entry.
  • Pass: The rescue service has been evaluated, the method (internal or external) is specified, and the rescue plan is attached to the permit, per §1910.146(k).

18. Confirm rescue service response

  • Check: The rescue service can respond in time.
  • Pass: The contractor has evidence of the service's availability, equipment and trained personnel; non-entry rescue is preferred.

Documentation, coordination and close-out

19. Confirm host/contractor coordination

  • Check: Multiple employers have coordinated.
  • Pass: The host employer and contractor have exchanged hazard information and entry conditions, per §1910.146(c)(8)–(9) and §1910.146(h).

20. Verify training and medical records are current

  • Check: Records are on file at onboarding.
  • Pass: Training certificates, respirator medical clearance and fit-test records are current and matched to the named entrants.

21. Confirm permit review and cancellation

  • Check: The permit is reviewed and closed at the end of entry.
  • Pass: The entry supervisor reviews and cancels the permit; problems are recorded, and re-entry requires a new permit.

22. Confirm rescue drill and review records

  • Check: Rescue readinessTor is evidenced.
  • Pass: Rescue drills or plan reviews are documented at the frequency the employer's programme sets, and the annual review of the programme is recorded.

Takeaway

Onboarding is the last cheap moment to fix a confined space programme. Get the space classification, the §1910.146(f) permit content, the atmospheric thresholds and the §1910.146(k) rescue plan into the contractor pack before anyone breaks the plane of an opening. If an item on this checklist cannot be evidenced, treat the entry as not ready rather than as a paperwork delay.

Key facts

Machine-readable statements extracted from the sources above. Each fact keeps the same identifier across all six language versions.

  • 19.5%–23.5%

    Under OSHA 29 CFR 1910.146, entry oxygen levels must remain between 19.5% and 23.5%.

    Fact ID: oxygen_range

  • below 10% LFL

    Flammable gas or vapour must be below 10% of the lower flammable limit for permit-required entry.

    Fact ID: flammable_limit

  • 10 ppm

    Hydrogen sulphide must be at or below 10 ppm under the acceptable entry limits.

    Fact ID: h2s_limit

  • 50 ppm

    Carbon monoxide must be at or below 50 ppm under the acceptable entry limits.

    Fact ID: co_limit

  • §1910.146(f)

    The entry permit must contain the items listed in §1910.146(f) before work begins.

    Fact ID: permit_content

  • §1910.146(k)

    Rescue arrangements and the rescue service evaluation are required by §1910.146(k).

    Fact ID: rescue_plan

Frequently asked questions

What atmospheric limits should a contractor meet before entry under OSHA 29 CFR 1910.146?

Oxygen between 19.5% and 23.5%, flammable gas or vapour below 10% of the lower flammable limit, hydrogen sulphide at or below 10 ppm and carbon monoxide at or below 50 ppm, with continuous or periodic testing during the entry.

What must an entry permit contain under §1910.146(f)?

The space, purpose, date and duration, entrants, attendants, entry supervisor, hazards, isolation, atmospheric testing results, rescue and communication arrangements, and acceptable entry conditions — all completed before entry.

Who can cancel a permit-required confined space entry permit?

The entry supervisor verifies conditions and cancels the permit at the end of the entry, or earlier if conditions change; re-entry requires a new permit.

Sources and licencing

Every claim in this article traces back to the sources listed below. Links open the publisher directly.

  1. 29 CFR 1910.146 — Permit-required confined spaces(opens in a new tab)

    Publisher: OSHA

  2. Confined Spaces — Standards(opens in a new tab)

    Publisher: OSHA

Reference Packs

Complete reference packs

Every article in the domain, reorganised into one professionally typeset PDF with a table of contents and cross-references.

All reference packs
OSHA Compliance Pack: Lockout/Tagout & Permit-Required Confined Space Entry — Rewrite Your LOTO Procedures and Contractor Onboarding Checklists to Meet 1910.147 and 1910.146

Instant download 68 pages 2 articles

OSHA Compliance Pack: Lockout/Tagout & Permit-Required Confined Space Entry

Rewrite Your LOTO Procedures and Contractor Onboarding Checklists to Meet 1910.147 and 1910.146

Hazardous energy control and confined space entry consistently rank among OSHA's most frequently cited standards — and among the most expensive mistakes a facility can make. This compliance pack brings together two of our most practical guides into a single, audit-ready resource for safety managers, maintenance leads, and EHS teams. In Part I, you'll learn how to rewrite your lockout/tagout procedures to align with 29 CFR 1910.147: building a machine inventory, identifying every energy source, drafting machine-specific procedures, and running the periodic inspections OSHA expects. Part II shifts the focus to contractors — the workers most often exposed to permit-required confined spaces with the least site knowledge. You'll get a step-by-step onboarding checklist covering space classification, host-employer communication, permit systems, atmospheric testing, and rescue arrangements under 1910.146. Together, the two guides close the loop between the equipment your own teams service and the outside crews you bring on site. Every chapter pairs plain-language explanations with editable templates, checklists, and sign-off forms you can put to work the same week. Whether you're preparing for an inspection, recovering from a citation, or simply tightening a program that has grown by accretion, this pack gives you the structure, the documentation trail, and the confidence to demonstrate compliance — not just claim it.

$2.90 Read article
U.S. Regulatory Compliance Mastery: PFAS Reporting & PPE Safety Standards — A Practical Guide to EPA PFAS Reporting (2026) and ANSI Z87.1 Eye Protection Requirements

Instant download 200 pages 2 articles

U.S. Regulatory Compliance Mastery: PFAS Reporting & PPE Safety Standards

A Practical Guide to EPA PFAS Reporting (2026) and ANSI Z87.1 Eye Protection Requirements

Navigating U.S. regulatory requirements demands precision, timeliness, and a clear understanding of evolving mandates. This guide equips environmental managers, safety officers, and compliance professionals with actionable frameworks for two critical domains: the EPA's 2026 PFAS reporting obligations under TSCA Section 8(a)(7) and the ANSI Z87.1 standard for occupational eye and face protection. The first section demystifies the PFAS reporting form, covering data collection strategies, chemical identity determination, concentration thresholds, and electronic submission via CDX. You'll learn how to classify articles versus mixtures, handle confidential business information, and avoid common enforcement pitfalls. Transitioning to personal protective equipment, the second section breaks down ANSI Z87.1-2020 requirements for safety glasses, goggles, and face shields. It explains impact ratings (Z87+, Z87), optical clarity tests, marking interpretation, and selection criteria for specific hazards such as chemical splash, radiation, and high-velocity impact. Real-world case studies illustrate compliance gaps and corrective actions. The guide concludes with a unified compliance calendar, documentation templates, and audit-ready checklists that integrate both regulatory streams into a single management system. Whether you're preparing for the January 2026 PFAS deadline or upgrading your PPE program, this resource delivers the clarity and tools needed to maintain compliance confidently.

$2.90 Read article
EU Compliance Mastery Pack: CE Marking Conformity Assessment & GDPR Data Processing Agreements — A Complete Practical Guide to Selecting Conformity Assessment Modules for CE Marking and Drafting Compliant Data Processing Agreements Under GDPR

Instant download 140 pages 4 articles

EU Compliance Mastery Pack: CE Marking Conformity Assessment & GDPR Data Processing Agreements

A Complete Practical Guide to Selecting Conformity Assessment Modules for CE Marking and Drafting Compliant Data Processing Agreements Under GDPR

Navigating European Union regulations requires mastery of both product compliance and data protection frameworks. This comprehensive pack brings together four authoritative guides that address the most critical and often misunderstood aspects of EU compliance: selecting the correct conformity assessment module for CE marking, and constructing legally sound Data Processing Agreements (DPAs) under the GDPR. The first guide demystifies the eight conformity assessment modules, providing decision trees, risk-based selection criteria, and real-world case studies to ensure your product follows the optimal path to market. The remaining three guides form a complete DPA toolkit: a compliance-focused overview of mandatory clauses, a step-by-step playbook for drafting and negotiating DPAs from scratch, and a granular clause-by-clause review that explains legal obligations, common pitfalls, and practical drafting alternatives. Together, these resources transform complex regulatory requirements into actionable workflows, saving legal costs, reducing time-to-market, and minimizing enforcement risk. Whether you are a manufacturer placing products on the EU market, a data controller engaging processors, or a compliance officer building a cross-functional program, this pack delivers the structured knowledge and practical templates you need to achieve and demonstrate compliance with confidence.

$8.90 Read article
Global Workplace Compliance Essentials — Navigating US and EU Regulatory Landscapes: OSHA, Prop 65, and Beyond

Instant download 45 pages 2 articles

Global Workplace Compliance Essentials

Navigating US and EU Regulatory Landscapes: OSHA, Prop 65, and Beyond

In today's complex international business environment, ensuring workplace compliance is not just a legal necessity—it's a critical component of operational integrity and risk mitigation. This essential guide consolidates vital regulatory knowledge from key jurisdictions, moving beyond simple checklists to provide actionable, strategic advice for multinational and domestic enterprises alike. We address specific, high-stakes requirements, such as adhering to California's Proposition 65 workplace warning mandates and meticulously managing OSHA 300 log recordkeeping deadlines to avoid costly penalties. Transitioning from fragmented compliance efforts to a unified, proactive strategy is the core value proposition of this package. We break down the often-opaque legal jargon into clear, step-by-step implementation plans. Whether you are a small business navigating state-level warnings or a large corporation managing federal OSHA reporting, this resource provides the necessary framework to stay ahead of audits and regulatory changes. The guide is structured not just to tell you *what* to do, but *how* to do it efficiently within your existing operational workflow. Ultimately, 'Global Workplace Compliance Essentials' empowers your organization to operate with confidence across diverse regulatory terrains. By mastering these critical US compliance areas—including Prop 65 and OSHA—you significantly reduce legal exposure, protect your brand reputation, and ensure uninterrupted business continuity. Invest in compliance, invest in stability.

$2.90 Read article
EU Compliance Mastery Pack: Cross-Border Regulatory Guide — Five Essential Compliance Frameworks for Importers, Builders, and Industrial Operators

Instant download 195 pages 5 articles

EU Compliance Mastery Pack: Cross-Border Regulatory Guide

Five Essential Compliance Frameworks for Importers, Builders, and Industrial Operators

Navigating European regulatory requirements has never been more complex — or more critical. This master pack consolidates five authoritative guides covering the most pressing compliance challenges facing businesses operating across EU borders and aligned markets. From carbon border adjustments to bioclimatic building codes, elevator safety certifications to power-plant carbon taxation and occupational safety audits, each chapter delivers actionable, deadline-driven guidance written by practitioners who implement these standards daily. The transition from fragmented national rules to harmonized EU mechanisms means compliance teams must now master cross-cutting obligations simultaneously. This pack bridges that gap by presenting each framework in a consistent structure: regulatory scope, calculation methodologies, documentation checklists, filing timelines, and common pitfalls. Whether you are an importer racing CBAM quarterly reports, a developer aligning new builds with RE2020 bioclimatic thresholds, a facilities manager certifying lifts under ITC AEM 1, a power-plant operator preparing for Indonesia's 2026 carbon tax (aligned with EU ETS linkages), or a safety officer auditing SMK3 systems under PP 50/2012, you will find step-by-step procedures, template references, and enforcement insights in one curated volume. Invest in this pack to replace reactive firefighting with a proactive compliance calendar, reduce external consultancy spend, and demonstrate due diligence to regulators, insurers, and investors alike.

$11.90 Read article
The EU Compliance Mastery Pack: CE Marking, Machinery Safety & Notified Bodies — Your Complete Practical Guide to GDPR Data Processing, CE Marking, and EU Machinery Regulation 2023/1230

Instant download 185 pages 10 articles

The EU Compliance Mastery Pack: CE Marking, Machinery Safety & Notified Bodies

Your Complete Practical Guide to GDPR Data Processing, CE Marking, and EU Machinery Regulation 2023/1230

This comprehensive pack consolidates ten essential guides into one actionable resource for manufacturers, compliance managers, and legal professionals navigating the complex EU regulatory landscape. Starting with the foundational GDPR Data Processing Agreement clauses, you'll learn best practices for drafting robust agreements that protect your organization and align with EU data protection standards. The pack then transitions seamlessly into the CE marking process, offering two dedicated guides on the Low Voltage Directive (LVD) that break down compliance requirements and practical steps for achieving CE certification. You'll master the selection of appropriate conformity assessment modules, ensuring you choose the right path for your product's risk category. The core of the pack focuses on the EU Machinery Regulation 2023/1230, providing a detailed checklist, requirements breakdown, and step-by-step compliance procedures that reflect the latest legal updates. Finally, you'll gain critical insights into when and how to engage a notified body, with a dedicated guide explaining the entire involvement process. This pack is designed to be your one-stop reference, saving you hours of research and helping you avoid costly compliance pitfalls. Each guide is written in plain language, filled with practical examples, and structured for quick reference, making it ideal for both beginners and seasoned professionals. By the end, you'll have a clear roadmap to achieve and maintain EU compliance, reduce risk, and bring your products to market with confidence.

$26.90 Read article
EU Compliance Complete Pack — CE Marking Technical Files and GDPR Data Processing Agreements: A Practical Guide Bundle

Instant download 150 pages 2 articles

EU Compliance Complete Pack

CE Marking Technical Files and GDPR Data Processing Agreements: A Practical Guide Bundle

EU Compliance Complete Pack brings together two practical guides for professionals who need to build, review, and maintain essential EU regulatory documentation. The first guide, EU CE Marking Technical File: A Practical Guide, walks through the purpose and structure of a technical file, product scope, applicable harmonised standards, risk assessment, declaration of conformity, authorised representative requirements, retention, and market surveillance readiness. The second guide, GDPR Data Processing Agreement Clauses: A Practical Guide, explains when Article 28 applies, how to draft and negotiate core DPA clauses, and how to handle sub-processors, international transfers, audits, breach notification, liability, and termination. Transitioning from product compliance to data protection, this pack connects two areas that often sit in different departments but share the same regulatory logic: documented accountability, traceability, and evidence. Each guide uses plain-language explanations, clause-by-clause commentary, checklists, and practical examples so you can move from understanding requirements to producing defensible documents. Whether you are preparing for a notified body review, responding to a customer due diligence request, or negotiating a vendor agreement, the material is designed to be used directly in your compliance workflow. In summary, EU Compliance Complete Pack is a focused, ready-to-use resource for compliance officers, legal teams, product managers, and consultants. It combines CE marking technical file guidance with GDPR DPA clause analysis, giving you a single reference for two high-priority EU compliance workstreams. Use it to train teams, build templates, audit existing documentation, and reduce the risk of costly gaps before regulators, customers, or auditors find them.

$9.90 Read article

Related articles

Domain overview · EU Compliance