API 570 Piping Inspection Support in Saskatchewan

Short answer: In Saskatchewan, pressure piping is pressure equipment under The Boiler and Pressure Vessel Act, 1999 and The Boiler and Pressure Vessel Regulations, 2017, administered by the Technical Safety Authority of Saskatchewan (TSASK). Piping designs are registered with TSASK, and owners who run a TSASK-approved quality management system of inspection must include pressure piping in their integrity assessment programme, using API 570 as the piping code. The owner's API 570 inspector evaluates and signs, and Atlantis performs the NDE behind that inspection. Atlantis performs the NDE; your API 570 Authorized Inspector remains inspector of record and signs the inspection report.

Saskatchewan's process piping is spread across a refinery and an upgrader, heavy-oil thermal projects, gas plants, potash and fertilizer plants, a carbon-capture unit, uranium mills, canola crushers and power stations, separated by long distances and joined by an extensive network of flowlines and pipelines. That geography shapes inspection more than anything else: campaigns must group sites, winters reach minus forty, spring road restrictions limit heavy equipment, and the boundary between plant piping under TSASK and pipelines and flowlines under the Ministry of Energy and Resources runs through almost every upstream facility. In October 2025, TSASK, Alberta's ABSA and Manitoba's Inspection and Technical Services published harmonized requirements for pressure equipment integrity management systems, which spell out how owners must control NDE contractors. This page covers where the piping is, how the Saskatchewan regime and API 570 fit together, where pipeline jurisdiction begins, which methods suit Saskatchewan damage mechanisms, and what Atlantis does. To start, request an NDE scope for your inspector's plan.

Where API 570 piping is in Saskatchewan

Direct answer: Saskatchewan's API 570 piping is concentrated at the Co-op refinery in Regina, the Lloydminster upgrader and heavy-oil thermal projects in the west, gas plants and oil batteries across the oil patch, potash and nitrogen fertilizer plants around Belle Plaine and Saskatoon, the Boundary Dam carbon capture plant near Estevan, uranium mills in the north, and agri-processing and power plants across the province.

Regina and Moose Jaw

The Co-op Refinery Complex in Regina, owned by Federated Co-operatives, is one of the larger refineries in Western Canada, with crude, coking, hydroprocessing, sulphur recovery and utility units and a large volume of unit and offsite piping. Hydroprocessing and sour water systems bring wet H2S damage, ammonium bisulphide corrosion and hydrogen service into the plan; crude units bring naphthenic acid and sulphidation concerns; and insulated offsite runs bring CUI. In Moose Jaw, an asphalt refinery runs heated, insulated piping where CUI and thermal cycling are the main questions.

Lloydminster and the heavy-oil belt

On the Saskatchewan side of Lloydminster, Cenovus operates a heavy-oil upgrader. To the north and south, steam-assisted thermal heavy-oil projects generate steam and handle hot produced emulsion, produced water and diluent, and conventional heavy-oil batteries and treaters handle sand-laden fluids. Erosion at elbows and tees, high-temperature corrosion, flow-accelerated corrosion in steam and condensate piping, and CUI on hot insulated lines dominate the damage mechanism list.

Estevan, Weyburn and the south-east

The south-east produces light oil from the Bakken and older Mississippian plays, with gas plants, batteries and gathering systems around Estevan, Weyburn and Carlyle. Carbon dioxide enhanced oil recovery at Weyburn-Midale brings CO2-rich produced fluids, where carbonic acid corrosion is the main threat to carbon steel. SaskPower's Boundary Dam carbon capture unit near Estevan adds amine absorber and regenerator piping, CO2 compression and SO2 capture systems, where amine corrosion, amine cracking and erosion at high-velocity points matter.

Saskatoon, Belle Plaine and the north

Potash producers run conventional and solution mines around Saskatoon, Esterhazy, Rocanville and Belle Plaine, with brine, steam, process water and reagent piping where chloride attack on carbon and stainless steels is constant. A nitrogen fertilizer plant at Belle Plaine adds synthesis gas, ammonia and urea piping. Northern uranium mills store and pipe sulphuric acid, reagents and process solutions. Canola crushing plants use hexane solvent extraction, ethanol plants run steam and fermentation systems, and SaskPower's gas and coal stations run steam, feedwater and fuel gas piping.

What API 570 requires, in plain terms

Direct answer: API 570 is the in-service inspection, repair, alteration and rerating code for metallic process piping. The owner divides piping into circuits, classes each by consequence of a leak, places CMLs where damage is expected, and schedules thickness and external inspections by class and remaining life, or under a qualifying risk-based programme. The inspector plans and accepts; examiners measure.

The current edition is the fifth, published in February 2024 alongside API RP 574, with an addendum issued since. API highlights a defined Inspection Supervisor role, stronger pressure-relieving device requirements and rules for deferring inspection repair recommendations. Online copies are usually older editions; work from a licensed current copy. In our own words:

• Roles. The owner runs the programme, the API 570 inspector plans, evaluates and accepts, examiners such as Atlantis technicians measure and report, repair organisations repair what the inspector authorises, and engineers handle alterations and rerates.
• Service classes. Class 1 for services where a leak could quickly become an emergency, such as flashing light hydrocarbons, NGL and, in many programmes, sour gas; Class 2 for most unit piping; Class 3 for flammables that do not significantly vaporise and many offsite lines; and, in recent editions, Class 4 for low-consequence services.
• Intervals. Thickness measurement at the shorter of half the remaining life or the class maximum. US OSHA guidance citing API 570 gives five years for Class 1 and ten years for Classes 2 and 3; in Saskatchewan the owner's programme, and TSASK's acceptance of it, govern how the code is applied.
• Special locations. Injection and mix points, deadlegs, small-bore connections, CUI-range insulated piping and soil-to-air interfaces get additional CMLs and specific methods.
• Corrosion rates. Long-term and short-term rates come from CML history, and the inspector normally governs on the more conservative.
• Examiners. Recent editions identify applications where UT shear-wave examiners must have passed a performance demonstration.

Atlantis can calculate corrosion rates and remaining life from its thickness data for the inspector's review; the interval decision belongs to the inspector and the owner. Background: API 570 code requirements, what triggers an internal piping inspection, API 510 vs API 570 and our API 570 programme overview.

TSASK, pressure piping registration and quality management systems

Direct answer: TSASK administers The Boiler and Pressure Vessel Act, 1999 and its 2017 Regulations. The Act defines a pressure piping system as the pipes, fittings and components that convey an expansible fluid under pressure. Piping designs are registered with TSASK after engineering review, built to ASME B31.1, B31.3 or B31.5, and owners can run in-service inspection under a TSASK-approved quality management system.

Design registration

Owners, users, agents, manufacturers and contractors of pressure equipment used in Saskatchewan are responsible for registering designs with TSASK, and every design is reviewed before registration. TSASK's pressure piping application asks which ASME code the piping complies with, B31.1, B31.3 or B31.5, and requires the type and extent of nondestructive examination to be specified, for example the percentage of welds radiographed. Registration does not relieve the constructor, installer or repairer of responsibility for the work. See our TSASK overview, CSA B51 and CRN registration pages.

Quality management systems of inspection

Owners or insurers can apply to TSASK's chief inspector for approval of a quality management system (QMS) of inspection, which TSASK describes as voluntary. Under it, licensed pressure equipment inspectors (LPEIs, in three classes) carry out and certify inspections, and a designated inspector acts for the chief inspector within the company. TSASK lists benefits including licensing fee discounts and the possibility of extending inspection intervals based on equipment history, best-practice standards and risk-informed policies. Boilers and pressure vessels still need an acceptance inspection by a TSASK inspector before, or under a QMS shortly after, they go into service.

The 2025 harmonized PEIMS requirements

In October 2025, ABSA, TSASK and Manitoba's Inspection and Technical Services issued AB-512H, Harmonized Requirements for Pressure Equipment Integrity Management Systems (Edition 1). For anyone supplying NDE to a Saskatchewan owner, three points matter, in our words:

• Piping is in scope. The Saskatchewan supplement states that pressure piping is within the definition of pressure equipment and that the integrity assessment programme applies to all pressure equipment, including pressure piping.
• API 570 is a working document. Organisations authorised to conduct integrity assessments must have access to the NBIC, applicable API standards such as API 510 and API 570, and the relevant ASME code sections.
• NDE contractors are controlled. The owner's system must approve NDE and testing contractors, give them written requirements, ensure written and validated procedures are followed, verify personnel qualification and certification, have corrosion monitoring plans prepared by competent people and approved, and have results assessed and verified promptly by competent personnel.

Confirm current requirements with TSASK, including the interprovincial PEIMS policy TSASK references for applicants. For a QMS owner, every element of that NDE list is something Atlantis is asked to evidence in writing, and our proposals and reports are built to do so.

Pipelines, flowlines and plant piping: where the boundary falls

Direct answer: Pipelines and flowlines in Saskatchewan are licensed by the Ministry of Energy and Resources under The Pipelines Act, 1998 and The Pipelines Administration and Licensing Regulations, with technical requirements in Directive PNG034, the Saskatchewan Pipelines Code, based on CSA Z662. Interprovincial and international lines are regulated by the Canada Energy Regulator. Plant piping is pressure piping under TSASK.

The Pipelines Administration and Licensing Regulations and Directive PNG034 took effect in January 2020, and PNG034 was revised in 2022. The directive sets the ministry's technical requirements for the design, construction, operation, modification, discontinuation and abandonment of pipelines, building on CSA Z662, and flowlines are licensed under the same framework. Upstream facilities such as batteries, gas plants and injection facilities are regulated under The Oil and Gas Conservation Act and its regulations, with storage covered by Directive S-01, while the pressure piping and vessels inside them remain TSASK-registered pressure equipment. The Enbridge mainline, Keystone and the CO2 pipeline bringing captured carbon dioxide from North Dakota to Weyburn are federally regulated.

For NDE scoping, the same steel can be inspected under API 570 and a TSASK-approved QMS on one side of a flange, and under CSA Z662, PNG034 and the licensee's pipeline integrity programme on the other. We record which regime each examined line falls under, exactly as the owner's drawings define it. Pipeline-side work is covered on our pipeline inspection page and our CSA Z662 overview; Alberta's comparable boundary rules are summarised on our API 570 Alberta hub.

NDE methods for API 570 work in Saskatchewan

Direct answer: UT thickness at CMLs carries the programme, with cold-weather and high-temperature procedures; corrosion mapping covers erosion and CO2 or amine corrosion; profile RT covers insulated and small-bore lines; guided-wave screening covers long runs; PAUT, TOFD, MT and PT cover welds in sour, amine and caustic services; and visual examination covers every external inspection.

Industrial radiography is licensed federally by the Canadian Nuclear Safety Commission, which in Saskatchewan also regulates the uranium mines and mills, and exposure device operators must hold CNSC certification. RT is performed only by crews holding the required licence and certifications. Method choice follows the damage mechanisms in each circuit; see the API 571 damage mechanisms guide, our sour cracking guide, the API RP 583 CUI guide and our CNSC overview.

Examiner certification in Saskatchewan

Direct answer: The harmonized PEIMS requirements oblige the owner to verify NDE personnel qualification and certification, but they do not name a scheme for Saskatchewan, so the owner's QMS and specification decide. Owners commonly accept ASNT SNT-TC-1A, CAN/CGSB-48.9712 (ISO 9712) or either. Atlantis technicians are certified to an ASNT SNT-TC-1A written practice under ASNT Level III oversight.

CAN/CGSB-48.9712, aligned with ISO 9712, is Canada's national scheme, administered by Natural Resources Canada's NDT Certification Body. The Canadian General Standards Board, which published the standard, closed on 1 April 2026; NRCan's certification body continues and CAN/CGSB-48.9712 remains valid, according to NRCan and CWB Group notices. Confirm the current certification body when you update a specification. See CAN/CGSB-48.9712 and the NRCan NDT Certification Body.

Owners who also operate in Alberta often carry AB-506's rules into Saskatchewan programmes; there, contractor UT thickness, MT and PT examiners need CGSB or SNT Level I or II and shear-wave UT examiners need CGSB Level II, or SNT-TC-1A Level II where the owner accepts it. We confirm in writing what your Saskatchewan QMS requires before mobilising. Atlantis does not provide CGSB or ISO 9712 training or certification; our training is ASNT SNT-TC-1A only, through NDT training in Saskatchewan and across Canada.

How Atlantis supports your inspector

Direct answer: We supply the NDE the way a QMS owner must control it: approved-contractor documentation, written scope, Level III-validated procedures, verified examiner certifications, prompt reporting and flagged questionable readings. We are not an Authorized Inspection Agency and we do not supply API-certified inspectors. We do not employ licensed pressure equipment inspectors or act for TSASK.

• Contractor approval pack. Written practice, Level III oversight, procedures, technician certifications and calibration system, ready for your QMS contractor approval.
• Scope from the plan. Circuits, isometrics, CMLs, damage mechanisms, methods and coverage from the inspector's corrosion monitoring plan.
• Procedures. An ASNT NDT Level III prepares or reviews each procedure, referencing ASME Section V, with cold-weather and high-temperature UT and temperature correction.
• Fieldwork. Crews are mobilised to your sites and the schedule is agreed during scoping, grouping batteries and plants to cut travel.
• Data QA and flagging. Readings are compared with history on site, and questionable readings go to the inspector the same day.
• Report. CML readings, C-scans, radiographs, guided-wave results with follow-up, calibration and certification records in our digital reporting platform.
• Acceptance. The LPEI or API 570 inspector reviews and accepts results, decides on repairs and sets next dates.

RBI and fitness-for-service assessments are performed by the owner's engineers or specialists using our data; Atlantis does not offer them. See API 570 piping NDE support and piping circuit and CML inspection.

Planning around winter, road bans and turnarounds

Direct answer: On-stream UT, mapping and profile RT can run year-round with cold-weather procedures and hoarding; insulation removal, CUI campaigns and most turnaround NDE are planned for late spring to early autumn. Spring road restrictions and long distances make site campaigns the efficient way to cover an upstream portfolio.

• Winter. Metal temperatures of minus thirty to minus forty affect couplant, batteries, instrument accuracy and technician safety. Heated hoarding, warm-up shelters and temperature-corrected readings are standard, and stripping insulation in deep cold is avoided because the reinsulation rarely matches the original.
• Spring road restrictions. Seasonal weight restrictions during the thaw affect cranes, vacuum trucks, scaffolding and repair crews more than NDE crews, but the whole sequence has to fit.
• Turnarounds. The Regina refinery, the Lloydminster upgrader, fertilizer plants and power stations plan outages in the warmer months; on-stream UT ahead of the outage lets repair spools and procedures be ready.
• Campaigns. Grouping a south-east Bakken campaign, a heavy-oil campaign around Lloydminster and Kindersley, or a potash-belt campaign keeps travel down and the inspector's review moving.
• Northern sites. Uranium mills need fly-in logistics, site radiation-protection rules and camp arrangements.

Confined-space entry follows Saskatchewan's occupational health and safety regulations and site permits. Book a scoping call to plan your next campaign.

API 570 piping inspection support across Saskatchewan

Direct answer: Atlantis supports API 570 piping programmes across Saskatchewan, with crews mobilised to your sites on a schedule agreed during scoping, covering Regina and Moose Jaw, Saskatoon and the potash belt, Lloydminster and the heavy-oil region, Estevan and Weyburn, Swift Current, and northern mine sites.

• Regina: refinery, pipeline terminal, canola and utility piping. Related pages: digital twins in Regina, NDT ERP in Regina and practical NDT in Regina.
• Saskatoon and the potash belt: potash, fertilizer, power and agri-processing piping. See digital twins in Saskatoon, NDT ERP in Saskatoon and practical NDT in Saskatoon.
• Lloydminster and the heavy-oil belt: upgrader, thermal-project, treater and battery piping. See digital twins in Lloydminster and NDT ERP in Lloydminster.
• Estevan, Weyburn and Carlyle: gas plant, CO2 EOR, carbon-capture and power-station piping.
• Moose Jaw and Swift Current: asphalt refinery, gas plant and power piping.
• The north: uranium mill acid, reagent and process piping, planned around fly-in access.

The companion hubs cover the other equipment on the same sites: API 510 pressure vessel inspection in Saskatchewan and API 653 tank inspection in Saskatchewan. For Level III procedure and written-practice support see NDT consulting in Saskatchewan and NDT consulting across Canada; for inspection data and certification tracking, NDT ERP in Saskatchewan; for technician development, practical NDT in Saskatchewan and ASNT Level III training.

Keeping piping history usable

Direct answer: Under a QMS, interval extensions depend on equipment history, so the quality of CML data decides how much flexibility an owner earns. We keep your circuit and CML numbering, record the reading pattern, instrument and calibration at each CML, and deliver data that loads into your integrity database.

When a reading pattern or location differs from history, we flag it rather than let it produce a misleading rate. New CMLs are photographed and described so the next crew finds them, and examiner certification records travel with the data so your QMS audit trail is complete. Results can be viewed on a digital twin of the facility, and certificates, calibrations and work orders can be tracked in our inspection-management ERP. Layouts are on NDT report templates; construction-code background is in ASME B31.3 explained.

What to send us for a Saskatchewan quote

Direct answer: Send the circuit list and isometrics, the last inspection report, the inspector's corrosion monitoring plan, your QMS contractor and certification requirements, access details and your season window. We reply with questions or a scope, and a quote within 24 hours of having what we need.

1. Circuit list with service class, material, size, schedule, temperature, pressure and TSASK registration numbers where relevant.
2. Isometrics with CMLs, injection points, deadlegs, small-bore connections and insulated or traced sections marked.
3. The last inspection report and thickness history, or confirmation that this is a baseline.
4. The approved corrosion monitoring plan and damage mechanisms, including sour, amine, CO2, erosion and CUI.
5. Your QMS requirements for contractor approval and examiner certification.
6. Where the owner's drawings place flowline, pipeline and plant-piping boundaries for the lines in scope.
7. Site list with legal land locations for upstream sites, access, hoarding, accommodation, permits and dates.

Send us your circuit list and we will scope the NDE against your inspector's plan.

Frequently asked questions: API 570 in Saskatchewan

Is process piping regulated by TSASK?

Yes. A pressure piping system is defined in The Boiler and Pressure Vessel Act, 1999, and pressure piping designs must be registered with TSASK after engineering review. Confirm exemptions for small or low-pressure systems with TSASK.

Does Saskatchewan require API 570?

We found no Saskatchewan regulation naming API 570 for all piping. Owners with a TSASK-approved QMS must include pressure piping in their integrity assessment programme, and the 2025 harmonized requirements expect integrity assessment organisations to work with API 510 and API 570. Most refineries and gas plants use API 570.

What is a TSASK quality management system of inspection?

A voluntary, TSASK-approved programme under which an owner or insurer carries out inspections through licensed pressure equipment inspectors and a designated inspector. Benefits can include fee discounts and interval extensions based on equipment history and risk-informed policies.

Who signs piping inspections in Saskatchewan?

The owner's inspector, typically a licensed pressure equipment inspector within a QMS, and usually API 570 certified in process plants. Atlantis performs the NDE; your API 570 Authorized Inspector remains inspector of record and signs the inspection report.

Is Atlantis an Authorized Inspector or an LPEI?

No. We are not an Authorized Inspection Agency, we do not supply API-certified inspectors, and we do not employ licensed pressure equipment inspectors. We perform and document the NDE that your inspector accepts.

Who regulates flowlines and pipelines in Saskatchewan?

The Ministry of Energy and Resources licenses pipelines and flowlines under The Pipelines Act, 1998, with technical requirements in Directive PNG034 based on CSA Z662. Interprovincial lines are regulated by the Canada Energy Regulator.

Are your technicians CGSB certified?

No. Atlantis technicians are certified to an ASNT SNT-TC-1A written practice under ASNT Level III oversight. Your QMS and specification decide what is acceptable, and we confirm it during scoping. CAN/CGSB-48.9712 remains valid after the Canadian General Standards Board's closure on 1 April 2026; confirm the current certification body.

Can you inspect piping in a Saskatchewan winter?

Yes, for on-stream UT, mapping and profile RT, using cold-weather procedures, heated hoarding and temperature correction. Insulation stripping and most turnaround work are planned for warmer months.

Who licenses radiography on Saskatchewan sites?

The Canadian Nuclear Safety Commission. Exposure device operators must hold CNSC certification, and work is done only by crews holding the required licence.

Do you provide RBI, fitness-for-service or API 570 training?

No. RBI and FFS are performed by the owner's engineers or specialists using our data. Atlantis offers ASNT SNT-TC-1A training only; for the API certification route see our API inspector career guide.

How quickly can you mobilise to Regina, Lloydminster or Estevan?

We quote within 24 hours of receiving the scope information. Mobilisation, accommodation and access are agreed during scoping around your turnaround, campaign and road-restriction windows.

Next step

For CMLs coming due, CO2 or amine corrosion surveys, heavy-oil erosion mapping, CUI follow-up or turnaround support, get a quote within 24 hours. Atlantis performs the NDE; your API 570 Authorized Inspector remains inspector of record and signs the inspection report.

More Atlantis NDT services in Saskatchewan

• NDT training and certification in Saskatchewan
• Level III consulting in Saskatchewan
• API 653 storage tank inspection support in Saskatchewan
• API 510 pressure vessel inspection support in Saskatchewan
• NDT ERP software in Saskatchewan
• Practical NDT simulator in Saskatchewan

Part of the wider piping circuit inspection service at Atlantis NDT.