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Standards that MassDEP has determined are necessary to protect public health and welfare from the adverse effects of specific air pollutants.
These regulations were last amended in April 1994.
310 CMR 6.00: Ambient Air Quality Standards (PDF)
Note: This is an unofficial version of Commonwealth regulations and is posted here for the convenience of the public. It is not an official statement of the regulations.
There are no proposed regulations out for public comment at this time.
There have been no recent amendments to these regulations.