It is highly recommended

It is highly recommended users of this document consult applicable federal, state and local laws and regulations. NADCA
does not, by the publication of this document, intend to urge action that is not in compliance with applicable laws and this
document must never be construed as doing so. The most stringent requirements of this Standard and applicable federal,
state, and local regulation must apply to the assessment, cleaning, or restoration of HVAC systems. The disclaimer at the
conclusion of this document provides additional important information regarding use of this standard.