Welcome to the
Harold Brothers Training Institute
Offering Continuing Education for Plumbers (MCE), Tier Program Licensure for Plumbing Apprentices, and OSHA Safety Program recommendations, in the state of Massachusetts.

Welcome to the
Harold Brothers Training Institute
Offering Continuing Education for Plumbers (MCE), Tier Program Licensure for Plumbing Apprentices, and OSHA Safety Program recommendations, in the state of Massachusetts.
2026/27 School Year
Apprentice Plumbing Tier Program for Licensure
Registration Now Open!
Classes begin Monday, September 14, 2026. Seats are limited and registration is accepted on a first come first serve basis.
MCE Plumbing
Offering Continuing Education for Plumbers (MCE), Tier Program Licensure for Plumbing Apprentices, and OSHA Safety Programs, in the state of Massachusetts.
Coming Soon!
Apprentice Plumbing
HBTI is licensed by the Massachusetts DPL and offers in-person training for the Massachusetts Apprentice Plumbing Tier Program for Licensure. Tier 1-5 begins this fall; apply today!
Registration Open!
OSHA Safety
The personal health and safety of each employee is of primary importance and their safety at the work site is our greatest responsibility. While we no longer offer OSHA Training, we do recommend working with MEP Continuing Education Online OSHA Training.
Mechanical Education
Industry reform and code revisions require constant updates for new installation procedures. Your license is your livelihood; keep up to date with your training. HBTI is an approved provider (#22) for the Massachusetts Mandatory Continuing Education (MCE) for Plumbers and the Apprentice Plumbing Tier Program for Apprentices and Journeyman.
