Final answer:
Reclaimed refrigerant must adhere to the AHRI 700 standard per EPA's regulations. This requirement aligns with the objectives of the Clean Air Act to maintain public health and environmental protection.
Step-by-step explanation:
Under the EPA's regulations, reclaimed refrigerant must meet the standard of AHRI 700 before it can be resold. Ensuring that reclaimed refrigerants comply with this standard is important to protect both public health and the environment, in line with the goals outlined in the Clean Air Act. The Act itself provides the legal framework for principal pollutant standards, aiming to safeguard 'sensitive' populations and the welfare of the public domain, which includes the integrity of ecosystems and buildings, among other concerns.
Concerning the standards set by the EPA, these include National Ambient Air Quality Standards for six criteria air pollutants, where the exact measures and acceptable levels are specified and updated periodically to reflect new scientific data or environmental needs. It is also noted that cooperation and sometimes legal contention, as seen between the EPA and the California Air Resources Board, may result in varying standards across states, although the current trend leans toward a unification or harmonization of higher standards under federal oversight.