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609 Certification

EPA Stakeholder meeting is scheduled for March 16, 2023 

March 16, 2023

EPA is holding a stakeholder meeting on Thursday, March 16 at 11am (EDT) on the reclamation of HFCs (hydrofluorocarbons) in the United States. This meeting is being held pursuant to...
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Training At Leonardo Helicopters

February 16, 2023

By Steve Schaeber, MACS Manager of Service Training MACS Manager of Service Training, Steve Schaeber, spent the day at Leonardo Helicopters (AgustaWestland Products) at PNE airport (Northeast Philadelphia Airport) teaching...
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Top-notch Mobile A/C Training & More

December 15, 2022

The Mobile Air Climate Systems Association (MACS) invites you to come to Nashville, TN for our 43rd annual Training Event and Trade Show at the Gaylord Opryland Resort and Convention...
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Section 609 certification reminders

March 21, 2022

Currently, all technicians must show their certification card to purchase R-134a refrigerant in quantities of 2-pounds or more.
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What does a MACS Section 609 card look like?

March 10, 2022

MACS occasionally receives reports from the field of a technician being refused purchase of refrigerant for not having a proper Section 609 card. Usually this is due to the technician not producing the right card or the counterperson not understanding what a MACS Section 609 card looks like. What does a MACS Section 609 card look like?
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Air contamination in an A/C system can ruin your day

February 2, 2022

I had a memorable encounter with air contamination in the mid 1990s.  I was conducting a lot of retrofit clinics at the time and had recently acquired a demo refrigerant identifier which I took to those clinics. At one clinic, there was a technician who was extremely interested in the refrigerant identifier.  
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Show me your MACS 609 card

May 26, 2021

When you purchase refrigerant in quantities of two pounds or more you must show your Section 609 card.If you are Section 609 certified through MACS between 1991 and May 2021...
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Pass the temperature probe

May 4, 2021

The first step is to run the A/C system for a few minutes to let it stabilize. Then both probes should be connected side by side at both points that will be temperature tested in the system. For example, if you were testing the temperature drop across the condenser, this would need to be done on both the discharge line and the liquid line.
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Does the compressor contain oil?

March 17, 2021

A question that comes up frequently on A/C tech lines is: Does the compressor contain oil and if so, how much?
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Helpful tips to register for MACS online training clinics

March 5, 2021

Helpful tips on how to register for a class on the MACS website
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Let everyone know you are Section 609 certified

February 22, 2021

Section 609 work t-shirts in black featuring the new MACS logo.
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The time for mandatory Section 609 recertification is now

May 3, 2018

The new refrigerant purchasing rules that took effect January 1, 2018 have had service shops, distributors and the MACS office in an uproar. At the MACS office, the faxes, emails,...
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