Steps to Become a 309A Electrician in Ontario
- Joelido Jr Tillo
- Apr 23
- 4 min read
Updated: Apr 24
Pursuing a career as a 309A electrician in Ontario offers access to a highly sought-after skilled trade with fulfilling work. The 309A designation pertains to electricians who focus on residential, commercial, and industrial electrical systems. If you're interested in this career, it's crucial to comprehend the necessary steps. This guide provides a clear breakdown of the process, assisting you in your journey from novice to certified electrician.

Understand What a 309A Electrician Does
An Electrician – Construction and Maintenance plans, assembles, installs, repairs, inspects, tests, and maintains electrical systems in residential, commercial, institutional, and industrial settings. These systems include heating, lighting, power, communication, control, security, renewable energy, and energy storage. They also measure, cut, thread, bend, assemble, and install conduits, electrical conductor enclosures, and supports.
Designs, assembles, installs, repairs, maintains, connects, and tests electrical systems
Plans installations using blueprints and installs electrical and electronic devices
Identifies faults in components
Measures, cuts, threads, bends, assembles, and installs conduits and conductor pathways
Splices and terminates conductors
Tests equipment for functionality
The new Electrical Trades’ Curriculum Standard will be phased in over multiple years.
The 2024 level 1 will be adopted by all TDAs starting September 1, 2024.
The 2024 level 2 will be adopted by all TDAs starting September 1, 2025.
The 2024 levels 3 and 4 will be adopted by all TDAs starting September 1, 2026. Level 4 does not apply to 309C.
The existing 2003 Curriculum levels will expire on August 31st before the new level is implemented.
Visit "Skill Trades Ontario" for more details.
How to start an apprenticeship
Step 1: Determine your eligibility
Step 2: Locate a sponsor (Click here for list of areas to find sponsor)
Step 3: Submit an application for an apprenticeship
Step 4: Execute and file your Training Agreement
Step 5: Obtain your Apprenticeship Training Standard Logbook
Meet the Basic Requirements
To begin training as a 309A electrician in Ontario, you must meet some basic criteria:
Click here for Apprenticeship Programs - Quick Facts Chart - Scroll down to "309 A - Trade code "
To qualify for an apprenticeship, you must:
Be at least 16 years old,
Have legal permission to work in Canada (e.g., a valid Social Insurance Number),
Meet the education requirements for your chosen trade, and
Have a sponsor in Ontario.
These requirements ensure you are prepared for the demands of the trade and the training ahead.
Enroll in an Apprenticeship Program
The core of becoming a 309A electrician is completing an apprenticeship. This combines paid on-the-job training with classroom instruction. Apprenticeships typically last about five years and include:
On-the-job training:
Under a licensed electrician's guidance, you gain practical experience with electrical systems. An apprenticeship offers on-the-job training by a skilled worker, following the trade’s Apprenticeship Training Standard, which outlines essential competencies. As skills are developed, the sponsor or trainer signs the training standard to confirm the apprentice has met the required objectives for the trade.
In-class training:
An apprenticeship for an Electrician — Construction and Maintenance consists of three stages of theoretical training, covering, but not limited to, instruction in:
laws, codes, and regulations
plans, schematics, and specifications
trade-related communication and documentation
electrical principles, wiring, motor starters, and controls
transformers, generators, and electronics
wires and cables
installation techniques
instrumentation and power distribution
fire alarms, building systems, high voltage systems, and control systems
maintenance of electrical equipment
project planning
grounding and bonding
distribution systems
protective devices
Depending on the training delivery agency, in-school training may be available in one of the following ways:
block release (full-time, for a set number of weeks)
day release (one day per week from September to June)
part-time (night-school programs)
alternative delivery (online, correspondence, etc.)
To start an apprenticeship, you need to find an employer willing to sponsor you. You can search for opportunities through:
Inquire at School – If you're in high school, consult your guidance counselor about programs like OYAP, Specialist High Skills Major, or dual credit options.
Explore colleges – Numerous colleges have career centers that assist students in finding apprenticeships.
Search online – Upload your resume on job platforms to locate apprenticeship opportunities.
Employment Ontario (EO) – EO assists in matching apprentices with sponsors and provides training.
Unions and trade associations – Many skilled trades have unions or groups that support apprentices in finding sponsors.
Local businesses – Look for companies in your trade through local websites, newspapers, or directories.
Network – Reach out to family, friends, or neighbours who are in the trades. They might know of someone hiring!
Once you secure an apprenticeship, you must register with the Ontario College of Trades or the Ministry of Labour, Training and Skills Development.
Complete the Required Training Hours
During your apprenticeship, you must complete a minimum number of hours:
On-the-job hours: Approximately 9,000 hours of practical work experience (5 years)
In-school hours: Around 840 hours of technical training spread over 3 levels
These hours ensure you develop the skills and knowledge necessary to work independently as a 309A electrician.
Pass the Certification Exam
After completing your apprenticeship hours and training, the next step is to write the Certificate of Qualification exam. This test evaluates your understanding of electrical theory, the Ontario Electrical Safety Code, and practical skills.
Preparing for the exam involves:
Reviewing course materials and codebooks
Taking practice tests
Attending exam preparation workshops if available
Passing this exam grants you the 309A Certificate of Qualification, officially recognizing you as a licensed electrician in Ontario.
Maintain Your Certification and Continue Learning
Once certified, you must keep your skills current by:
Following updates to the Ontario Electrical Safety Code
Attending refresher courses or workshops
Staying informed about new technologies and safety practices
Continuing education helps you maintain high standards and adapt to changes in the electrical industry.
Explore Career Opportunities
With your 309A certification, you can work in various settings such as:
Residential construction and renovation
Commercial buildings and offices
Industrial plants and factories
Electrical maintenance and repair services
Many electricians also choose to specialize further or start their own contracting business.
For more detail information about apprenticeship programs, please visit https://www.skilledtradesontario.ca/




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