[(q)] (R) "Provide heating, ventilation, air-conditioning, or refrigeration
services" means to install, maintain, alter, remodel, or repair heating systems, cooling
systems, refrigeration systems, ventilation systems, or hydronic systems.

[(r)] (S) "Refrigeration system" means a system used to cool a surface or area
below 55 degrees Fahrenheit or 12.9 degrees Celsius.

[(s)] (T) "Subdivision of the State" means any of the 23 counties in Maryland,
the City of Baltimore, and any municipal corporation.

[(t)] (U) "Ventilation system" means the natural or mechanical process of
supplying air to, or removing air from, any space:

(1) whether the air is conditioned or is not conditioned; and

(2) at a rate of airflow of more than 250 cubic feet per minute.

9A-302.

(a) To qualify for an apprentice, journeyman, JOURNEYMAN RESTRICTED,
master, master restricted, or limited license, an applicant shall meet the
requirements of this section.

(b) An applicant for a master heating, ventilation, air-conditioning, and
refrigeration contractor license shall:

(1) have been regularly and principally employed in providing heating,
ventilation, air-conditioning, or refrigeration services under a journeyman,
JOURNEYMAN RESTRICTED, limited, or master restricted license for not less than 3
years of active experience under the direction and control of a master heating,
ventilation, air-conditioning, and refrigeration contractor and have been so employed
for not less than 1,875 hours in the year prior to application; and

(2) pass an examination administered by the Board.

(c) An applicant for a master restricted heating, ventilation, air-conditioning,
and refrigeration contractor license shall:

(1) have been regularly and principally employed in providing
refrigeration, air-conditioning, forced air heating, hydronic heating, or ventilation
services under a journeyman, JOURNEYMAN RESTRICTED, limited, or master
restricted license for not less than 3 years of active experience under the direction and
control of a master or master restricted heating, ventilation, air-conditioning, and
refrigeration contractor and have been so employed for not less than 1,875 hours in
the year prior to application; and

(2) pass an examination administered by the Board.

(d) An applicant for a limited heating, ventilation, air-conditioning, and
refrigeration license shall:

(1) have been regularly and principally employed in providing forced air
heating, hydronic heating, ventilation, air-conditioning, or refrigeration services