Press Releases

As the leading association in the HVAC inspection, cleaning, and restoration industry, NADCA has more than 1,500 member companies and continues to grow each year. Members of NADCA are committed to adhering to the highest standards in air duct cleaning.

Mt. Laurel, NJ – September 24, 2025 – The National Air Duct Cleaners Association (NADCA), also known as the HVAC Inspection, Cleaning, and Restoration Association, today announced the release of the latest edition of ACR, The NADCA Standard for Assessment, Cleaning, and Restoration of HVAC Systems. Widely recognized as the industry’s benchmark, The Standard provides comprehensive guidance for assessing and cleaning HVAC systems, and cleanliness verification.  

As the leading association in the air duct cleaning industry, NADCA offers two certifications: the Air Systems Cleaning Specialist (ASCS) certification and the Certified Ventilation Inspector (CVI) certification. These credentials are internationally recognized and known for showcasing an individual's enhanced knowledge and skills related to HVAC system hygiene.