"The emissions and safety inspection ensures motor vehicles operating in Massachusetts are safe, properly maintained, and not emitting excess air pollutants in our communities, which will improve air quality for us all," said MassDEP Commissioner Martin Suuberg. "MassDEP, along with our program partners, encourages Massachusetts residents to renew their stickers to ensure that their vehicle emission systems are inspected yearly." When the COVID-19 pandemic struck last year, some extensions were granted to annual inspection stickers expiring between March and May of 2020, but those extensions have expired and officials said Wednesday that no further extensions are planned. There are 1,800 local inspection stations in the state.