1. All individuals providing HVAC-R services in Maryland must hold a license from the state board. (Source: https://www.labor.maryland.gov/license/hvacr/hvacrnolic.shtml; verbatim: “All individuals providing heating, ventilation, air conditioning and refrigeration services in the State of Maryland”)
2. Apprentices must be licensed and supervised on the jobsite by a licensed Master or Journey individual. (Source: https://www.labor.maryland.gov/license/hvacr/hvacrnolic.shtml; verbatim: “Apprentices must be licensed, supervised and be under the control of a licensed Master or Journey licensed individual who is present on the jobsite.”)
3. Apprentices are prohibited from performing HVAC-R work alone or contracting for services. (Source: https://www.labor.maryland.gov/license/hvacr/hvacrnolic.shtml; verbatim: “Apprentices are not permitted to perform any HVACR work alone or to enter into contracts to perform such services.”)
4. A journeyman license requires at least four years as a licensed apprentice and 6,000 hours of training under a licensed contractor. (Source: https://www.labor.maryland.gov/license/hvacr/hvacrlicreq.shtml; verbatim: “Must have been licensed as an apprentice for at least four years and during that period must have completed at least 6,000 hours of training in providing HVACR services under the direction and control of a licensed HVACR contractor;”)
5. A journeyman applicant must pass an examination with a minimum score of 70%. (Source: https://www.labor.maryland.gov/license/hvacr/hvacrlicreq.shtml; verbatim: “Pass the journeyman examination with a score of 70%;”)