It’s July 1st and that can mean only one thing in New York City: new laws take effect.

Starting today, the “grace period” is officially over and possessing styrofoam in the Big Apple is now a punishable offense.

Foam coffee cups, meal packaging and packing peanuts are now the latest contraband within city limits.

Progressive Mayor Bill de Blasio praised the ban:

“These products cause real environmental harm and have no place in New York City. We have better options, better alternatives, and if more cities across the country follow our lead and institute similar bans, those alternatives will soon become more plentiful and will cost less. By removing nearly 30,000 tons of expanded polystyrene waste from our landfills, streets and waterways, today’s announcement is a major step towards our goal of a greener, greater New York City.”

Residents caught with anything styrofoam–including coolers for their Central Park picnic–will get slapped with a fine.

PIX 11 reports:

The ban was initiated in January 2015 after consultation with vendors and stakeholders, upon which the Department of Sanitation (DSNY) determined that Expanded Polystyrene Foam cannot be recycled. As a result of the ban, manufacturers and stores may not sell or offer Styrofoam items such as cups, plates, trays, or containers in the City.

The determination was made after considering environmental effectiveness, economic feasibility, and safety for employees of DSNY and Sims Municipal Recycling, the City’s recycling processor.

“Styrofoam products contribute an estimated 20,000 tons of waste in NYC waste streams,”according to Christine Datz-Romero, Executive Director of the Lower East Side Ecology Center.  “In NYC schools alone over 830,000 foam lunch trays are used every day. In the school setting, this ban is a perfect opportunity to implement a shift away from single use to durable items, eliminating wastefulness and teaching an important lesson to the next generation.”

The Big Apple banned “big” sugary drinks in 2014, only to have it overturned in court.

“The negative effects of sugary drink over-consumption on New Yorkers’ health, particularly among low-income communities, are irrefutable,” de Blasio said of the law championed by his predecessor, Michael Bloomberg.