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AhaBulb: Stuff Everyone Should Know · ahabulb.com/epa-apprentice-supervision

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

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

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References

  1. 40 CFR 82.161 Technician certification (Cornell LII) www.law.cornell.edu/cfr/text/40/82.161 Checked 2026-10-10.
  2. 40 CFR 82.161 Technician certification (Cornell LII) www.law.cornell.edu/cfr/text/40/82.161 Checked 2026-10-10.
  3. 40 CFR 82.152 Definitions (Cornell LII) www.law.cornell.edu/cfr/text/40/82.152 Checked 2026-10-10.

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