The MA early childhood field uses a lot of acronyms. Here's what they actually mean, who needs them, and how to get one.
High School Diploma or GED / HiSET
HS / GEDA high school diploma or its MA equivalent (HiSET). Required for nearly all plumbing apprenticeship programs.
- Who needs it
- Anyone applying for a union or open-shop plumbing apprenticeship in MA.
- How to get it
- Massachusetts uses the HiSET exam. Free prep through MA adult education. Most adults prepare in 2β6 months.
- Cost
- HiSET test fee ~$95. Prep is free at MA adult ed centers.
OSHA 10-Hour Construction
OSHA 10Federal construction safety training covering fall protection, electrical, struck-by, and caught-in/between hazards. Universally required on commercial and union plumbing job sites in MA.
- Who needs it
- Every helper, apprentice, and journeyman on commercial sites in MA.
- How to get it
- Take the 10-hour course online (OSHA-authorized providers like ClickSafety, 360training) or in person.
- Cost
- ~$60 online. Lifetime card.
MA Plumbing Apprentice License
ApprenticeEntry-level state license that lets you perform plumbing work under the supervision of a licensed master. Required to log the 8,500 hours toward your journeyman exam.
- Who needs it
- Anyone training to become a licensed plumber in MA.
- How to get it
- Apply through the MA Board of State Examiners of Plumbers and Gas Fitters. Requires age 18+, sponsorship by a licensed master plumber, and enrollment in a Board-approved school.
- Cost
- Application fee: ~$95. Renewal every 2 years (~$80).
MA Journeyman Plumber License
JourneymanState license to perform plumbing work without direct master supervision. The first license that lets you earn full plumber wages.
- Who needs it
- Anyone who wants to perform licensed plumbing work in MA without a master watching every job.
- How to get it
- Complete 8,500 hours of supervised work + 550 hours of approved classroom instruction (4β5 years), then pass the MA Journeyman Plumber written exam.
- Cost
- Exam + license fee: ~$150β$250. Biennial renewal: ~$80 + Board-approved CE hours.
MA Master Plumber License
MasterTop-tier state plumbing license. Lets you pull permits in your own name, supervise apprentices and journeymen, and operate as the licensed contractor of record on plumbing jobs.
- Who needs it
- Plumbers running their own crews, pulling permits, owning a plumbing business, or teaching apprentices.
- How to get it
- Hold an active MA Journeyman Plumber license for at least 1 year, then pass the MA Master Plumber exam (covers 248 CMR Plumbing Code, business law, blueprint reading, sizing).
- Cost
- Exam + license fee: ~$200β$350. Biennial renewal: ~$100 + Board-approved CE hours.
MA Gas Fitter License
Gas FitterSeparate state license required to install, repair, or replace gas piping and gas appliances in MA. Issued by the same Board (Plumbers and Gas Fitters).
- Who needs it
- Plumbers who want to install water heaters, boilers, ranges, or any other gas-fired appliance β and the piping that feeds them.
- How to get it
- Has its own apprentice / journeyman / master tracks under the MA Board. Many MA plumbers carry both plumbing AND gas licenses.
- Cost
- Apprentice ~$95, Journeyman ~$150, Master ~$200. Biennial renewal with CE.
MA Backflow Prevention Tester / Installer
BackflowCertification to install and annually test backflow prevention devices on potable water systems in MA. Required by most water departments.
- Who needs it
- Journeyman and master plumbers who want to bid commercial work or sign annual backflow test contracts.
- How to get it
- Complete an approved 40-hour backflow tester course (Peterson School, NEIWPCC, etc.), then pass the certification exam.
- Cost
- Course + exam: ~$500β$900. Recertification every 2β3 years.
EPA Lead RRP Certification (Renovator)
EPA RRPFederal certification required to disturb painted surfaces in pre-1978 homes (common when cutting walls/floors for plumbing). Protects against lead-paint exposure.
- Who needs it
- Any plumber who renovates, repairs, or repipes in MA's older housing stock.
- How to get it
- Complete an 8-hour EPA-approved RRP course. Recertification every 5 years.
- Cost
- ~$200β$300 per renovator. Firm certification adds ~$300.
MA Home Improvement Contractor (HIC) Registration
HICMA registration required for any contractor doing residential work over $1,000 per job. Issued by the Office of Consumer Affairs and Business Regulation.
- Who needs it
- Plumbing business owners doing residential service or remodel work in MA.
- How to get it
- Apply through the MA Office of Consumer Affairs. Includes a contribution to the HIC Guaranty Fund and proof of liability insurance.
- Cost
- Registration + guaranty fund: ~$250β$300. Renewal every 2 years.
MA Business Registration (LLC / DBA)
Business RegRegistering your plumbing business as an LLC, sole proprietorship, or corporation with the MA Secretary of the Commonwealth.
- Who needs it
- Any plumbing business owner. Required for hiring employees, opening a business bank account, and protecting personal assets.
- How to get it
- File with the MA Secretary of the Commonwealth. Get a federal EIN from the IRS (free, instant). Register for MA state taxes and unemployment insurance.
- Cost
- LLC filing: ~$500. DBA: ~$50β$100 at city hall. EIN: free.