Sources & Methodology

Written by a licensed IBEW journeyman electrician  ·  Updated August 2026 ·  Reviewed for NEC accuracy

Every factual claim on this site traces to one of two places: a primary source listed below, or 13 years of first-hand IBEW Local 134 experience — and we tell you which is which.

How this site is written

Sparky AI’s content is written by Michael Briglio, a 13-year IBEW Local 134 journeyman electrician and federally recognized pre-apprenticeship instructor in Chicago. Test-format facts, scoring rules, and application policies come from the official administrators and locals below. Study strategy, interview guidance, and statistics like “roughly 70% of aptitude-test failures are math” come from his direct experience teaching pre-apprentices and placing 100+ students into the IBEW — when a number is from instructor experience rather than a published study, the page says so.

Application-window and pay data on our IBEW locals tracker is verified against each local’s own published pages and re-checked on a schedule — every local page shows its last-verified date rather than pretending to be evergreen.

Official Test Administrators

The organizations that actually write and administer the entrance exams our practice tests mirror.

  • electrical training ALLIANCE (formerly NJATC)

    The IBEW/NECA training organization that administers the aptitude test used by most IBEW locals. The NJATC renamed itself the electrical training ALLIANCE in 2015 — our test format, timing, and scoring facts trace to its published materials and local JATC testing notices.

  • EEI — Edison Electric Institute (CAST)

    Publisher of the CAST (Construction and Skilled Trades) battery used by utilities like ComEd, PG&E, and Con Edison. Basis for our CAST practice test and study guide.

Union & Industry Organizations

Government Data

Code & Technical References

  • NFPA 70 — National Electrical Code

    Every NEC citation on the site (ampacity, box fill, conduit fill, load calcs, AFCI/GFCI) traces to specific NEC articles and tables. Our answer-accuracy process: asksparkyai.com/nec-accuracy.

Corrections

Spot something wrong or out of date? Email asksparkyai@gmail.com — corrections ship fast, and locals-tracker fixes show a new verified date.

Michael — IBEW Local 134 Journeyman Electrician and pre-apprenticeship instructor

Michael Briglio

IBEW Local 134 Journeyman · Licensed Contractor · IL Educator

Michael started in the IBEW at 18 and made foreman as a 3rd-year apprentice. Thirteen years in, he’s a Local 134 journeyman, a licensed electrical contractor, a licensed Illinois teacher, and OSHA 30 and EPA 608 certified. He teaches a federally recognized pre-apprenticeship on the south side of Chicago — where he’s helped 100+ students get into the IBEW. He built Sparky AI around exactly what the NJATC exam tests and what trips people up. Prep with this and you walk in ready.

13-yr journeymanLicensed contractorLicensed IL teacherOSHA 30EPA 608100+ into IBEW
More about Michael →

Facts on this page trace to primary sources or first-hand IBEW Local 134 experience — see sources & methodology.