HVAC Apprenticeships in Indiana: Programs, Requirements and How to Apply

Indiana is a federal Office of Apprenticeship state: registered apprenticeship programs there are registered by the U.S. Department of Labor rather than by a state apprenticeship agency.

Nationally, the Office of Apprenticeship registers programs in states with no recognized state apprenticeship agency through its state field offices, and Indiana sits on that federal side of the split.

Sponsors include the union joint apprenticeship committees and the association and school trusts this page names.

In Indiana, the sponsor roster the research confirmed by name comes from the Indiana Plumbing Commission's approved apprenticeship schools — UA locals, PHCC chapters, ABC of Indiana Apprenticeship Trust and Mechanical Skills, Inc. — a plumbing-side list.

For HVAC specifically, the program confirmed with HVACR service technicians in its own name is Local 440's JATC in Indianapolis, covered below.

Before you accept any offer, ask the sponsor to confirm the program's federal registration; apprenticeship.gov, the office's site, is the federal side of that check.

Indiana licenses no HVAC work statewide: the Indiana Professional Licensing Agency's professions list includes Plumbing but no HVAC, heating, mechanical or refrigeration board, so an apprentice holds no state HVAC license or registration.

Indianapolis calls HVAC licensing a municipal decision, and its Board of Heating and Cooling Examiners issues heating and cooling contractor licenses in five types — Air Conditioning A (unrestricted), B, D, Refrigeration and High Pressure Steam — with EPA 608 certification matched to the license type: Universal for Air Conditioning A and Refrigeration, Type I and II for B and D, and none for High Pressure Steam.

An unlicensed employee of a licensed heating and cooling contractor may do heating and cooling work under the contractor's direction and control, within the license's scope, but may not contract independently — which is where an unlicensed apprentice working for a licensed contractor sits.

The state does license plumbing apprentices (licenses expire October 1 of even years, $10 renewal); there is no HVAC equivalent.

One federal rule does reach apprentices: work that could breach a refrigerant circuit requires EPA 608 certification, and apprentices are exempt only while closely and continually supervised by a certified technician.

On the union side of the pipe trades, the United Association says its apprenticeships are registered with the Department of Labor, typically last five years, and cover plumbing, pipefitting, HVACR, welding and fire protection.

The Indiana program the research verified with HVACR service technicians in its own name is the Plumbers, Steamfitters & HVACR Service Technicians Local 440 JATC in Indianapolis: it accepts apprenticeship applications on a year-round basis, and applications were open for the 2026-2027 program year when we read the site in September 2026.

In Evansville, Plumbers & Steamfitters UA Local 136 runs a training center with an online apprenticeship application; its name covers the pipe trades, so ask the local what it is registering before you assume an HVAC/R service seat.

The other UA locals named on the Indiana Plumbing Commission's approved apprenticeship schools list — Locals 166, 210, 661, 172 and 157 — appear there as approved plumbing apprenticeship schools.

Our research did not confirm a SMART sheet-metal local's apprenticeship in Indiana; treat that as a gap to fill with the local itself, and confirm any program's registration with the Department of Labor.

The sponsors and schools the research confirmed by name in Indiana, outside the UA locals, all appear on the Indiana Plumbing Commission's approved-schools list: ABC of Indiana Apprenticeship Trust (Indianapolis), the Fort Wayne, North Central Indiana, Southeast (Prosser Career Ed Center), South Central Indiana and SWIPHCC chapters, the Northwest Indiana Plumbing Apprenticeship School and Mechanical Skills, Inc. Read that list for what it is — the Commission's approvals for plumbing apprenticeship — and ask each sponsor whether it also runs an HVAC/R service program before you apply.

Nationally, ABC describes itself as founded on the merit shop philosophy and reports more than 24,000 members.

PHCC offers apprenticeship content through an online learning academy, and its Educational Foundation is an EPA-approved 608 certifying program.

ACCA reports 60,000 professionals and over 3,000 company members and is an EPA-approved 608 certifying program, but the research found no ACCA registered apprenticeship — a gap in the research, not a verified negative.

Employer-based programs register through the Office of Apprenticeship like any other registered program; ask any contractor you work for whether it sponsors one, and confirm the registration.

Registered apprenticeship pairs on-the-job learning with related technical instruction, and the federal rule leaves the shape open: program terms may be time-based (at least 2,000 hours of on-the-job learning), competency-based, or a hybrid of both.

The Department of Labor recommends a minimum of 144 hours of related technical instruction per year of apprenticeship — recommended, not required.

The related-instruction providers the research confirmed by name in Indiana sit on the Plumbing Commission's plumbing-side list: the locals' apprenticeship committees (the JATCs and JACs it names), Mechanical Skills, Inc., the Northwest Indiana Plumbing Apprenticeship School and Evansville Plumbers & Pipefitters Training.

We did not survey Indiana community colleges as HVAC related-instruction providers, so we cannot name one — ask each sponsor where its classroom hours are delivered and confirm the arrangement with the school.

Because Indiana sets no state HVAC license, there is also no state table that credits school hours toward one; hours count toward the program's completion certificate, not toward a state credential.

There is no state application: with Indiana a federal Office of Apprenticeship state, you apply to the sponsor itself and ask it to confirm the program's federal registration.

The concrete entry points the research verified are Local 440's JATC — applications year-round in Indianapolis, and UA Local 136's online application in Evansville — a pipe-trades local, so ask what it registers.

Expect the federal floor: registered apprentices must be at least 16 years old unless a higher minimum age is set by law; there is no federal maximum age, and registered programs may not discriminate against applicants aged 40 or older, though a sponsor may add qualifications on top.

An apprenticeable occupation requires at least 2,000 hours of on-the-job learning, a probationary period may not exceed 25% of the program length or 1 year (whichever is shorter), and pay must follow a progressively increasing schedule tied to skill — the entry wage not below the FLSA minimum where it applies, with no federal percentage steps — each program's standards set its own.

Completion earns a certificate from the registration agency, not a trade license.

Our guide to how to get a hvac apprenticeship covers the search and the application itself.