Boston mass transit will ban alcohol ads starting July 1. The ban will include subway cars, trains and buses, Boston.com reports.

Joe Pesaturo, spokesperson for the Massachusetts Bay Transportation Authority (MBTA), said the transit line’s advertising contractor has said it expects ad revenue to drop by about $1.5 million in the first full year of the alcohol ad ban.

New York City and Chicago are the only other cities with major public transit systems that allow alcohol ads, according to Michael Scippa, spokesman for the watchdog organization Alcohol Justice.

The MBTA already prohibits tobacco, firearms, violence and nudity in ads on its property, the article notes.