Trades Glossary

Canadian trades terms, plain English.

Red Seal, NOC codes, CofQ, TEER, CWB tickets, WSIB, H2S, if you've seen a term and weren't sure what it meant, it's here.

A B CDEF G H I JKLM NOPQR S TUVWXYZ

A

Apprenticeship

Also known as: Trades apprentice, indentured apprentice

A formal training program that combines on-the-job work hours with technical school attendance. Most trades require 6,000-9,000 hours of apprenticeship (typically 3-5 years) before you're eligible to write the provincial exam for your CofQ. You must be registered with your provincial apprenticeship authority to accumulate recognized hours.

On WrkCrew: WrkCrew supports apprentice job seekers. The onboarding wizard asks for your year level so employers know where you are in your program.

B

B-Pressure

Also known as: B51 welding ticket, pressure piping

A welding certification to the CSA B51 standard, covering pressure vessels, boilers, and pressure piping. Required on oil and gas facilities, refineries, and any work involving pressurized systems. B-pressure welders command a significant pay premium, typically 25-35% above structural welders.

On WrkCrew: High demand in Alberta and Saskatchewan oilfield and refinery work. One of the highest-value certifications on WrkCrew.

Boilermaker

Also known as: Boilermaker fitter

A trade that fabricates, installs, and maintains boilers, pressure vessels, tanks, vats, and heat exchangers. Boilermakers work in refineries, power plants, pulp mills, and heavy industry. The work overlaps with welding and pipefitting but is its own Red Seal designation.

On WrkCrew: High demand on Alberta refinery and upgrader turnarounds. CWB welding tickets are often required alongside the boilermaker designation.

C

Certificate of Qualification (CofQ)

Also known as: Provincial CofQ, Journeyman Certificate

A provincial certification that proves you've completed a full apprenticeship and passed the provincial exam for your trade. Valid only in the province that issued it, unlike a Red Seal, it's not automatically recognized elsewhere. Most journeyman roles accept either a CofQ or Red Seal.

On WrkCrew: In Alberta, the equivalent is a Journey Certificate (e.g. 300A Construction Electrician). Ontario uses numbered codes (309A, 442A). Either type is typically accepted alongside a Red Seal on WrkCrew.

CWB

Also known as: Canadian Welding Bureau

Canada's primary certification body for welding. A CWB ticket certifies that you've been tested and can weld to a specific standard (e.g., CSA W47.1 structural steel, B51 pressure piping). CWB certifications are position- and process-specific, an all-position CWB ticket is worth significantly more than a flat-position only.

On WrkCrew: CWB certification is mandatory for structural welding on Canadian construction projects. B-pressure tickets are required for oil and gas pipeline and pressure vessel work.

Confined Space

Also known as: Confined Space Entry and Monitor

Safety training for entering tanks, vessels, manholes, pipelines, and other spaces with limited entry/exit points and risk of hazardous atmospheres. A Confined Space Monitor (or Attendant) is the person stationed outside who monitors conditions and coordinates emergency response.

On WrkCrew: Required on industrial maintenance, tank cleaning, and pipefitting roles. WrkCrew can verify this credential.

F

Fly-In Fly-Out (FIFO)

Also known as: Camp work, remote site, turnaround

A work arrangement common in Alberta's oil sands where workers fly to a remote site and live in work camps, then fly home after their rotation ends. Typical rotations are 2 weeks on / 2 weeks off, 3 weeks on / 1 week off, or similar. FIFO roles usually pay a significant premium over local work.

On WrkCrew: Common on WrkCrew job postings for Fort McMurray and northern Alberta. Rotating shift schedules in job postings often indicate FIFO or camp work.

G

Ground Disturbance

Also known as: GD Level 1 and Level 2

Training required before digging, drilling, or otherwise disturbing the ground on industrial sites in Alberta and Saskatchewan, where underground pipelines, cables, and utilities are dense. Level 1 is awareness; Level 2 is required to supervise ground disturbance activities.

On WrkCrew: Standard requirement on AB/SK pipeline, oilfield construction, and civil projects.

Gasfitter

Also known as: Gas Fitter Class A / Class B

A provincial certification to work on natural gas or propane systems. Class A covers commercial and industrial gas systems; Class B covers residential. Required in addition to a plumbing or HVAC ticket when working on gas-fired equipment or gas lines in most provinces.

On WrkCrew: Gasfitter Class A is a high-value add-on certification for plumbers and HVAC technicians in Canada.

H

H2S Alive

Also known as: Hydrogen Sulphide training

An 8-hour safety course required for anyone working in oil and gas environments in Alberta and Saskatchewan where hydrogen sulphide (H2S) may be present. H2S is a colourless, extremely toxic gas that occurs naturally in oil sands, wells, and sour gas processing. The most common H2S training is the Energy Safety Canada 'H2S Alive' program.

On WrkCrew: Mandatory for essentially all oilfield, refinery, and upstream energy work in AB/SK. WrkCrew automatically surfaces this ticket on oilfield job postings.

I

Instrumentation Technician

Also known as: Instrument tech, I&E tech

A trade that installs, calibrates, and maintains the measurement and control instruments that monitor industrial processes, pressure gauges, flow meters, temperature sensors, control valves, and PLCs. Often combined with electrical work as 'I&E' (instrumentation and electrical) in oilfield contexts.

On WrkCrew: Chronically short-staffed in Alberta oil and gas. Some of the highest journeyman wages on the platform.

J

Journeyman / Journeyperson

Also known as: Journey-level, Certified Tradesperson

A tradesperson who has completed their full apprenticeship (all required hours and technical training) and holds a Certificate of Qualification or Red Seal. Journeymen are fully certified to work independently in their trade without supervision. The term is being replaced with 'journeyperson' in many provinces.

On WrkCrew: The majority of job postings on WrkCrew target journeyman-level workers or above.

M

Millwright

Also known as: Industrial mechanic millwright

A trade that specializes in installing, maintaining, and repairing industrial machinery and equipment, conveyors, pumps, turbines, gearboxes, presses, and production line equipment. Millwrights work in manufacturing plants, mills, mines, and refineries. The Red Seal trade is 'Industrial Mechanic (Millwright).'

On WrkCrew: Strong demand in AB/SK oil sands, potash mines, and pulp mills. One of the highest-paying trades at journeyman level.

N

NOC Code

Also known as: National Occupational Classification

The Government of Canada's system for classifying every occupation in the country. Trades fall mostly in the 72000-75000 range (NOC 2021). NOC codes are used in immigration applications (Express Entry, Federal Skilled Trades), employment records, and labour market data. The current version is NOC 2021.

On WrkCrew: If you're an internationally-trained tradesperson applying through Express Entry or the Federal Skilled Trades Program, your NOC code determines whether you qualify.

P

Per Diem

Also known as: Living allowance, subsistence allowance

A daily tax-free allowance paid to workers who must travel away from home for work, to cover accommodation and meals. Per diem rates in Alberta trades typically range from $100-$200/day on top of regular wages. Distinct from travel pay (a rate paid to get to the site) and camp work (where accommodation is provided by the employer).

On WrkCrew: Some WrkCrew job postings indicate whether per diem is included, it's a significant component of total compensation on out-of-town work.

R

Red Seal

Also known as: Interprovincial Standards Certificate

Canada's national trades certification standard. A Red Seal means your trade credentials are recognized in every province and territory, you don't need to re-certify when you move or take a job in a new province. Issued by the Canadian Council of Directors of Apprenticeship (CCDA) after passing an interprovincial exam.

On WrkCrew: Most WrkCrew employers will treat a Red Seal as the gold-standard credential for journeyman roles.

S

Shutdown / Turnaround

Also known as: TA, plant turnaround, maintenance outage

A planned maintenance period where an industrial facility (refinery, plant, mill) is taken offline to perform maintenance, inspections, and repairs that can't be done while running. Turnarounds generate massive temporary demand for trades, electricians, pipefitters, millwrights, and welders are all needed simultaneously. Work is intensive but pay is excellent.

On WrkCrew: Many WrkCrew employers hire specifically for turnaround work. Contract and seasonal job types on WrkCrew often correspond to turnaround windows.

T

TEER

Also known as: Training, Education, Experience and Responsibilities

The skill-level component of NOC 2021 codes. TEER 1 = requires a degree. TEER 2 = requires a diploma or apprenticeship. TEER 3 = requires some secondary school or on-the-job training. Most journeyman trades are TEER 2 or TEER 3.

On WrkCrew: Your TEER level affects which immigration streams you qualify for.

TDG

Also known as: Transportation of Dangerous Goods

A federal certification (Transport Canada) required for anyone who handles, offers for transport, or transports dangerous goods. Required on oilfield, chemical, and industrial sites where hazardous materials are regularly moved.

On WrkCrew: Common on WrkCrew oilfield labourer and industrial worker job requirements.

W

WHMIS

Also known as: Workplace Hazardous Materials Information System

Canada's national hazardous materials training standard. WHMIS 2015 (the current version, aligned with the Globally Harmonized System) teaches workers how to safely handle, store, and respond to hazardous products. Required on virtually every industrial and construction worksite in Canada.

On WrkCrew: Expected on every WrkCrew profile, it's a baseline safety ticket on almost every job posting.

Working at Heights

Also known as: WAH, fall protection

A provincially mandated safety training program for working on surfaces more than 3 metres above ground. Requirements vary by province, Alberta and Saskatchewan require fall protection training that covers harness use, anchor points, and rescue. Ontario requires specific MOL-approved WAH training. All are recognized on WrkCrew.

On WrkCrew: Required on essentially all construction, industrial maintenance, and roofing work. WrkCrew can verify this credential.

WSIB

Also known as: Workplace Safety and Insurance Board (Ontario)

Ontario's workers' compensation board. Employers in Ontario are required to be registered with WSIB and maintain good standing. WCB (Workers' Compensation Board) is the equivalent in Alberta and BC. WrkCrew verifies that employers are in good standing before awarding the verified employer badge.

On WrkCrew: A WSIB/WCB clearance is one of the documents WrkCrew requires from employers during verification.

WCB

Also known as: Workers' Compensation Board

The workers' compensation program in Alberta (WCB Alberta), BC (WorkSafeBC), and most other provinces outside Ontario. Covers medical costs and lost wages if you're injured on the job. Employers must be registered and in good standing.

On WrkCrew: WrkCrew verifies WCB/WSIB clearance for all employers before they can post jobs.

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