What is the cost of Supplemental Membership?
Supplemental Membership dues are charged on an annual basis at the cost of $250.00 per year. Dues are payable by July 1, of every year. When a company first joins NADCA, dues for the first full year (July 1 through the following June 30) are prorated based upon when membership began. Companies which have not fulfilled their membership requirements in 12 months from the time of application will forfeit their application fees and dues.

What is required to become a Supplemental Member?
Supplemental Membership companies must have at least one full-time Air Systems Cleaning Specialist (ASCS) certified technician on staff, at least $500,000.00 in general liability insurance, and – if required by state law – proof of licensure for HVAC cleaning and making amendments to the HVAC system (such as cutting access holes).
States requiring special licenses are:

Do I need to be certified to become a Supplemental member?
Each Supplemental Member company must have at least one full-time Air Systems Cleaning Specialist (ASCS) certified technician on staff.

Where can I take the ASCS certification exam?
There are three options for taking the ASCS certification examination:

1. Prep. class and examination are offered at all of NADCA’s Seminars and the Annual Meeting.
   Click here for more information.
2. Prep. class and examination are offered regularly in regional areas across the country.
   Click here for more information.
3. Certification examinations are offered at standardized testing centers around the world.
   Click here for more information.

Is a license required to be a Supplemental member?
Yes, some states do require a license for HVAC cleaning and/or cutting access holes in an HVAC system.
States requiring special licenses are:

Can I use NADCA’s logo in my advertising?
NADCA Supplemental member companies who fulfill all requirements of membership have the right to use the NADCA logo in advertising and promotional materials. Click here to download the rules and regulations regarding proper use of the NADCA logo

If I have a pending Supplemental membership application, how long do I have to meet the requirements for Regular Membership?
Supplemental Membership requirements must be met within one year of application submission. Companies which have not fulfilled their membership requirements in 12 months from the time of application will forfeit their application fees and dues.

Are International Supplemental Members required to have certified staff as well as meet the insurance requirements?
Yes, International Supplemental Members are required to have certified staff.