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Free CSA pressure vessel inspection checklist

Free CSA B51:2019 pressure vessel inspection checklist (PDF). Nameplate, shell, fittings, relief valves and NDE checks. Download free.

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Updated 26 Oct 2026

CSA B51:2019 Pressure Vessel Inspection

Pressure vessel inspection per CSA B51 Boiler, Pressure Vessel, and Pressure Piping Code.

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0 of 22 checks

Vessel Identification

1CRN is current, valid, and matches provincial/territorial registration
2Nameplate legible, securely attached, and data matches design drawings
3MAWP, design temperature, and construction code clearly indicated

Shell & Heads

4External surface free of pitting, bulging, cracking, or deformation
5Weld seams (longitudinal and circumferential) free of visible defects
6Wall thickness measurements within minimum design limits (UT readings)
7Internal surface inspected for erosion, deposits, or lining degradation

Nozzles & Fittings

8Nozzle connections secure, no leaks at flanged or threaded joints
9Gaskets in serviceable condition, correct type for service fluid and temperature
10Bolting torqued to specification, no signs of stress relaxation or corrosion

Safety Valves

11Pressure relief valve(s) installed, sized correctly for MAWP
12Relief valve set pressure verified and within tolerance (bench test or in situ)
13Discharge piping unobstructed and routed to safe location
14Valve seal/tag intact, calibration date current

Corrosion Assessment

15External corrosion under insulation (CUI) assessment completed
16Corrosion rate calculated and remaining life within acceptable limits
17Cathodic protection system functional (if applicable)

Insulation & Coatings

18Insulation intact, no missing sections, moisture ingress, or jacketing damage
19Protective coatings and paint in serviceable condition

Nameplate & Documentation

20Manufacturer data report (MDR) on file and accessible
21Previous inspection reports reviewed, outstanding items addressed
22Fitness-for-service assessment current (if vessel is beyond original design life)

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Jarrod Milford

Jarrod Milford

Co-Founder & Commercial Director

Updated 26 October 2026
Also see:Compliance and inspections →Best inspection software →MapTrack vs spreadsheets →

Short answer

A CSA pressure vessel inspection checklist records a periodic inspection of a registered vessel: nameplate and CRN, external and internal condition, corrosion and thickness readings, welds, relief valves, fittings, supports and instruments, with NDE results. Inspectors complete it at the interval the province sets. In Ontario, section 10 of O. Reg. 220/01 requires vessels in use to be periodically inspected at the code adoption document's intervals.

Checked against CSA B51:24 (twentieth edition, 2024) on by the MapTrack templates team. How we check templates

Key takeaways

  • The MapTrack CSA pressure vessel inspection checklist contains 22 checks across 7 sections. Sections covered: Vessel Identification, Shell & Heads, Nozzles & Fittings, Safety Valves, Corrosion Assessment, Insulation & Coatings, Nameplate & Documentation.
  • CSA B51:24 is the newest edition, but provinces adopt specific editions, so the edition that applies is the one your province names.
  • Ontario: O. Reg. 220/01 s 10 requires vessels in use to be periodically inspected by an inspector or the owner's insurer.
  • Alberta: PESR s 33 requires a certificate of inspection permit to operate boilers and pressure vessels, unless exempted.
  • ASME Section VIII is a design and construction code; in-service inspection follows codes such as API 510.
  • Take thickness readings at the same marked points each inspection so corrosion rates can be calculated.

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What is a CSA pressure vessel inspection checklist?

A CSA pressure vessel inspection checklist is a structured document used by inspectors, maintenance personnel and jurisdictional authorities to verify that pressure vessels comply with CSA B51:2019, the Canadian boiler, pressure vessel and pressure piping code. CSA B51 establishes the requirements for the design, construction, installation, inspection, testing, repair, alteration and re-rating of boilers and pressure vessels in all Canadian provinces and territories. Provincial regulations such as Ontario Technical Standards and Safety Act O. Reg. 220/01, Alberta Pressure Equipment Safety Regulation AR 49/2006, and British Columbia Safety Standards Act Power Engineers, Boiler, Pressure Vessel and Refrigeration Safety Regulation reference CSA B51 as the mandatory inspection standard. This checklist covers nameplate and registration verification, external visual examination of shells, heads and nozzles, internal inspection where accessible, corrosion mapping, weld examination, safety and relief valve condition, fittings and appurtenances, insulation and jacketing, foundation and support structures, instrumentation and controls, and non-destructive examination (NDE) requirements.

Pressure vessel failures can result in catastrophic explosions, fatalities, environmental releases and significant property damage. Regular inspections aligned with CSA B51 and the provincial operating permit requirements are essential to identify degradation mechanisms such as general corrosion, localised pitting, stress corrosion cracking, hydrogen blistering, creep and fatigue before they compromise vessel integrity. This checklist provides a systematic, repeatable framework that ensures every inspection follows the same thorough sequence, documents findings against the applicable CSA B51 clauses, and produces records that satisfy jurisdictional audit and re-registration requirements.

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Looking after pressure vessels on oil and gas sites? Pressure items, lifting gear and Ex equipment each sit on an inspection schedule in asset tracking for oil and gas.

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Benefits of using this CSA pressure vessel inspection checklist

  • CSA B51: 2019 compliance: documented inspections satisfy the periodic examination requirements referenced by provincial pressure equipment regulations across all Canadian provinces and territories.
  • Catastrophic failure prevention: systematic inspection of shells, heads, nozzles and welds identifies corrosion, cracking and erosion before they reduce wall thickness below the minimum allowable and compromise vessel integrity.
  • Relief valve assurance: verifying safety and relief valve condition, set pressure, capacity and test certification ensures overpressure protection is always functional, preventing rupture scenarios.
  • Registration and permit support: completed inspection records with findings, NDE results and fitness-for-service assessments are required documentation for provincial registration renewals and operating permit re-issuance.
  • Insurance compliance: pressure equipment insurers and jurisdictional inspection agencies require documented periodic inspections as a condition of coverage, and incomplete records can void policies or trigger surcharges.
  • Maintenance planning: inspection findings such as corrosion rates, pit depths, crack indications and weld degradation inform remaining life calculations, repair planning and capital replacement budgets.

Benefits of digitising forms in MapTrack

When you digitise pressure vessel checklists in MapTrack, you get:

  • Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
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  • File every completed form against the asset, location or person it covers.
  • Download any completed form as a PDF, with failed answers listed at the top.
  • Fill in forms offline; they upload when the device is back online.
  • Build conditional logic (show or hide questions based on answers).
  • Take pictures or attach photos. Not possible with a paper-based form.
  • Electronic signatures.
  • Edit forms later without reprinting.
  • Set who can view, fill in or edit forms with user roles.
  • Upload a paper form (PDF, Word, Excel or a photo) and MapTrack's AI builds a digital version for you to check.
  • Build a version of a form for each jurisdiction you work in, from the same template.
  • Download completed forms as PDFs to show a local inspector.
  • Set each asset's inspection interval to match the rule where it works.

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What to include in a CSA pressure vessel inspection checklist

This CSA pressure vessel inspection checklist covers 12 key areas:

  • Vessel identification: owner, plant location, vessel tag number, provincial registration number (CRN), manufacturer, serial number, year of manufacture, design code (ASME VIII Div 1 or 2), MAWP, design temperature, service (contents).
  • Inspection details: date, inspector name, inspector qualifications (API 510, ABSA, TSSA or provincial equivalent), inspection type (internal, external, on-stream), inspection interval basis.
  • Nameplate and registration: nameplate legible and securely attached, data matches registration documents, CRN current, provincial operating permit valid.
  • External visual examination: shell, heads and nozzles checked for corrosion, pitting, bulging, dents, cracks, paint or coating condition, insulation damage, signs of leakage at flanges and fittings.
  • Internal visual examination: internal surfaces inspected for corrosion, erosion, pitting, cracking, lining or cladding condition, tray or baffle condition, sediment or scale accumulation (where vessel can be entered safely).
  • Thickness measurements: ultrasonic thickness readings at predetermined grid points, comparison with previous readings to calculate corrosion rate, minimum measured thickness versus minimum required thickness per design code.
  • Non-destructive examination: NDE methods applied (UT, MT, PT, RT), areas examined, acceptance criteria, results and interpretation by qualified NDE technician.
  • Safety and relief valves: valve tag numbers, set pressure, capacity, last test date and result, seal integrity, discharge piping unobstructed, CSA B51 clause reference.
  • Fittings and appurtenances: flanged connections, bolting condition, gasket condition, sight glasses, level gauges, pressure gauges, temperature gauges, drain and vent valves.
  • Instrumentation and controls: pressure transmitters calibrated, high-pressure alarms and shutdowns tested, temperature indicators and alarms functional.
  • Defect register: item number, location on vessel (head, shell course, nozzle), defect description, CSA B51 clause reference, severity classification, corrective action required.
  • Sign-off: inspector signature, qualifications, fitness-for-service determination (fit for continued service, repair required, re-rate, retire), next inspection date.

How to use this CSA pressure vessel inspection checklist

  1. Verify the vessel identification, registration documents and previous inspection records before beginning the physical examination.: Confirm the vessel tag number, provincial registration number (CRN), manufacturer, serial number, design code and MAWP against the nameplate and registration documents. Review the previous inspection report, thickness survey records, corrosion rate calculations and any outstanding repair or alteration recommendations. Check that the provincial operating permit is current and that the inspection is being conducted within the required interval.
  2. Conduct the external visual examination of the shell, heads, nozzles, insulation, foundation and support structures.: Walk around the vessel and examine every accessible external surface. Look for general corrosion, localised pitting, bulging, dents, cracks at nozzle connections and welds, coating or paint deterioration, and signs of leakage at flanges, fittings and instrument connections. Check insulation and jacketing for damage, gaps or moisture ingress that could accelerate corrosion under insulation (CUI). Inspect the foundation, saddles, skirt and support legs for settlement, cracking, corrosion and anchor bolt condition.
  3. Perform the internal visual examination where the vessel can be safely entered, or arrange on-stream inspection techniques where entry is not practicable.: If the vessel has been taken out of service, cleaned and gas-freed, enter and inspect all internal surfaces for corrosion, erosion, pitting, cracking, lining or cladding degradation, tray or baffle condition, and sediment or scale deposits. Use adequate lighting and mark areas of concern for follow-up NDE. Where internal entry is not practicable, use on-stream inspection techniques such as external ultrasonic thickness surveys, acoustic emission testing or guided wave ultrasonics to assess internal condition without shutdown.
  4. Take ultrasonic thickness measurements at the predetermined grid points and conduct any required non-destructive examination.: Record UT thickness readings at each monitoring location on the vessel thickness survey drawing. Compare readings with the previous survey to calculate short-term and long-term corrosion rates. Identify any location where the measured thickness approaches the minimum required thickness. Conduct additional NDE (magnetic particle, liquid penetrant, radiography, phased array UT) at any area showing indications, at weld intersections, at nozzle reinforcement zones and at any location specified by the fitness-for-service assessment.
  5. Inspect safety and relief valves, fittings, instrumentation and controls, then complete the defect register and fitness-for-service determination.: Verify that each safety and relief valve has been tested within the required interval, that set pressures match the vessel MAWP, that discharge piping is unobstructed and that seals are intact. Check all flanged connections, bolting, gaskets, sight glasses, gauges and drain valves. Confirm that pressure and temperature instruments are calibrated and that high-pressure alarms and emergency shutdowns are functional. Document all findings in the defect register, classify severity, assign corrective actions and determine the fitness-for-service status: fit for continued service, repair required, re-rate or retire.

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How often should you complete this checklist?

CSA B51:2019 and provincial regulations establish the required inspection intervals for pressure vessels based on the service, degradation history and risk classification. Most provinces require an internal inspection at intervals not exceeding six years and an external inspection at intervals not exceeding three years, although specific intervals vary by jurisdiction. Alberta ABSA, Ontario TSSA and British Columbia BC Safety Authority each publish their own interval tables based on vessel service and inspection history.

Owners may apply for extended inspection intervals through risk-based inspection (RBI) programmes that demonstrate the vessel degradation rate supports a longer interval without compromising safety. Between scheduled inspections, operators should conduct routine visual checks during daily plant rounds, looking for leaks, unusual vibration, coating damage and insulation deterioration. Safety and relief valves should be tested at intervals specified by the provincial authority, typically every three to five years.

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Frequently asked questions

CSA B51:2019 establishes the requirements for periodic inspection of pressure vessels used in all Canadian provinces and territories. The standard requires that pressure vessels be inspected at intervals determined by the provincial regulatory authority, with inspections conducted by qualified inspectors holding credentials recognised by the jurisdiction (such as ABSA in Alberta, TSSA in Ontario, or BC Safety Authority in British Columbia). Inspections must cover nameplate verification, external and internal visual examination, thickness surveys, safety and relief valve testing, and a fitness-for-service determination documenting whether the vessel is fit for continued operation.

Inspection intervals vary by province but most jurisdictions require an internal inspection at intervals not exceeding six years and an external inspection at intervals not exceeding three years. Alberta ABSA, Ontario TSSA and British Columbia BC Safety Authority each publish interval tables based on vessel service, degradation history and risk classification. Owners may apply for extended intervals through risk-based inspection programmes that demonstrate the corrosion rate supports a longer interval without compromising vessel integrity.

Pressure vessel inspectors in Canada must hold qualifications recognised by the provincial regulatory authority where the vessel is registered. Common qualifications include API 510 Pressure Vessel Inspector certification, National Board Commission, or provincial inspector credentials issued by ABSA (Alberta), TSSA (Ontario), or BC Safety Authority (British Columbia). The inspector must also have practical experience with the specific vessel type, service and degradation mechanisms. Some provinces require the inspector to be employed by or contracted through the jurisdictional inspection agency.

A Canadian Registration Number (CRN) is issued during the design registration process and confirms that the pressure vessel design has been reviewed and accepted as complying with the applicable design code (typically ASME Section VIII). The CRN is permanent for that design. A provincial operating permit is issued by the jurisdictional authority after the vessel has been installed, inspected and found fit for service at a specific location. The operating permit must be renewed periodically, typically tied to the inspection interval, and can be revoked if inspections reveal the vessel is no longer fit for service.

The most common NDE methods for pressure vessel inspections are ultrasonic thickness measurement (UT) for wall thickness monitoring, magnetic particle testing (MT) for surface-breaking cracks in ferromagnetic materials, liquid penetrant testing (PT) for surface-breaking cracks in non-magnetic materials, radiographic testing (RT) for internal weld defects, and phased array ultrasonic testing (PAUT) for detailed weld and corrosion mapping. The NDE methods required depend on the vessel material, service, degradation mechanism and the specific findings during visual examination.

Yes. Download and use this CSA B51 pressure vessel inspection checklist at no cost. It downloads as a ready-to-print PDF. No MapTrack account is required. If you want digital pressure vessel inspections on mobile with photo capture, thickness survey tracking, relief valve test date management and compliance dashboards per vessel, MapTrack can do that. Book a demo to see how it works.

Applicable regulatory standards

This template is a starting point. Check the current requirements that apply to your equipment, work and location. The template alone does not establish compliance.

  • CSA B51, Boiler, pressure vessel, and pressure piping code

    Edition: CSA B51:24 (twentieth edition, 2024)

    The Canadian boiler, pressure vessel and pressure piping code. Provinces adopt a specific edition, so check which one applies.

    CSA GroupSold by the publisher

  • O. Reg. 220/01: Boilers and Pressure Vessels (Technical Standards and Safety Act, 2000)

    Edition: Consolidated from 1 July 2018 to the e-Laws currency date

    Ontario: periodic inspection by an inspector or the owner's insurer at code adoption document intervals.

    • s 10: Owners must have boilers and pressure vessels in use periodically inspected by an inspector or their insurer at code adoption document intervals.

    Government of Ontario (e-Laws)

  • Pressure Equipment Safety Regulation, Alberta Regulation 49/2006

    Edition: AR 49/2006 with amendments up to and including AR 132/2023, current as of 8 November 2023 (office consolidation)

    Alberta: certificate of inspection permits to operate, owners' responsibilities and the codes that apply.

    • s 33: Boilers, pressure vessels, fired-heater pressure coils and thermal liquid heating systems need a certificate of inspection permit to operate, except those exempted by subsection (2).
    • s 37: Responsibilities of owners of pressure equipment.
    • s 6: Codes and standards that apply to pressure equipment in Alberta.

    Alberta King's Printer

  • BPVC Section VIII Rules for Construction of Pressure Vessels Division 1

    Edition: 2025 edition (BPVC Section VIII, Division 1), with ASME's posted errata (latest record 26-2446, posted 20 October 2026)

    The design and construction code most vessel designs follow; in-service inspection is covered by other codes.

    ASMESold by the publisher

  • API 510 Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration

    Edition: API 510, 11th edition (October 2022), with Errata 1 (March 2023) and Errata 2 (June 2025)

    In-service inspection, rating, repair and alteration code for pressure vessels.

    American Petroleum Institute (API)Sold by the publisher

Each source was read at its publisher and the page checked on 26 October 2026. The publisher's current text is the authority.

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  <p style="font-size:12px;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;color:#071D49;margin:0;">Free template</p>
  <p style="font-size:18px;font-weight:700;color:#071D49;margin:6px 0 0;">CSA pressure vessel inspection checklist</p>
  <ul style="margin:12px 0 0;padding-left:18px;color:#374151;font-size:14px;line-height:1.6;">
    <li style="margin:4px 0;">Vessel identification: owner, plant location, vessel tag number, provincial registration number (CRN), manufacturer, serial number, year of manufacture, design code (ASME VIII Div 1 or 2), MAWP, design temperature, service (contents).</li>
    <li style="margin:4px 0;">Inspection details: date, inspector name, inspector qualifications (API 510, ABSA, TSSA or provincial equivalent), inspection type (internal, external, on-stream), inspection interval basis.</li>
    <li style="margin:4px 0;">Nameplate and registration: nameplate legible and securely attached, data matches registration documents, CRN current, provincial operating permit valid.</li>
    <li style="margin:4px 0;">External visual examination: shell, heads and nozzles checked for corrosion, pitting, bulging, dents, cracks, paint or coating condition, insulation damage, signs of leakage at flanges and fittings.</li>
    <li style="margin:4px 0;">Internal visual examination: internal surfaces inspected for corrosion, erosion, pitting, cracking, lining or cladding condition, tray or baffle condition, sediment or scale accumulation (where vessel can be entered safely).</li>
    <li style="margin:4px 0;">Thickness measurements: ultrasonic thickness readings at predetermined grid points, comparison with previous readings to calculate corrosion rate, minimum measured thickness versus minimum required thickness per design code.</li>
  </ul>
  <p style="font-size:13px;color:#6B7280;margin:14px 0 0;padding-top:12px;border-top:1px solid #E5E7EB;">Free <a href="https://www.maptrack.com/templates/csa-pressure-vessel-inspection" style="color:#071D49;font-weight:600;text-decoration:none;">CSA pressure vessel inspection checklist</a> by MapTrack</p>
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The MapTrack CSA pressure vessel inspection checklist contains 22 checks across 7 sections.

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