An uncertified apprentice may work on refrigerant circuits if they are...

Closely and continually supervised by a certified technician.

Start playing free

  1. Closely and continually supervised by a certified technician ✔
  2. Working in the same building as a certified technician
  3. Under 18 years old

Why: Apprentices are exempt from certification only if a certified technician closely and continually supervises them during any work that could release refrigerant.

Huh, didn't know that: Apprentices must be registered with the U.S. Department of Labor's Office of Apprenticeship or a recognized State Apprenticeship Council.

The dad joke
I applied to be a doorman but didn't get the job due to lack of experience. That surprised me. I thought it was an entry level position.
Like this card?
Play the game

References

Answer: Closely and continually supervised by a certified technician. Apprentices are exempt from certification only if a certified technician closely and continually supervises them during any work that could release refrigerant.

  1. 40 CFR 82.161 Technician certification (Cornell LII) www.law.cornell.edu/cfr/text/40/82.161
    Apprentices are exempt from the requirement in paragraph (a)(1) of this section provided the apprentice is closely and continually supervised
    Checked 2026-10-10.
  2. 40 CFR 82.161 Technician certification (Cornell LII) www.law.cornell.edu/cfr/text/40/82.161
    The supervising certified technician and the apprentice have the responsibility to ensure that the apprentice complies with this subpart.
    Checked 2026-10-10.
  3. 40 CFR 82.152 Definitions (Cornell LII) www.law.cornell.edu/cfr/text/40/82.152
    currently registered as an apprentice in maintenance, service, repair, or disposal of appliances with the U.S. Department of Labor 's Office of Apprenticeship
    Checked 2026-10-10.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game