On-site Sewage Systems 2024 FAQ - BCIN and Exam Questions

Common questions about Ontario's On-site Sewage Systems 2024 BCIN exam.

Is the 2024 On-site Sewage Systems exam already in use?

Humber’s registration site says 2024-code-based Ontario Building Code exams start on March 30, 2026. Confirm your booked sitting if your date is near that transition.

What is the format?

Humber describes Ontario Building Code exams as open-book, 3 hours, with 70 multiple-choice and true/false questions.

What is the biggest study mistake?

Trying to memorize isolated sizing facts without connecting them to site conditions, system classification, and the supplementary standards.

Do I need a BCIN to register?

Yes. Humber says a personal BCIN is required for registration.

Should I study only Part 8?

Part 8 is the core, but the official syllabus also reaches into Division C and related drainage or site-work material.