The city is reportedly ramping up an effort to get more mothers to breast feed.
The New York Post reports beginning in September, the city will start checking how many bottles are being used at certain hospitals.
Many will also begin documenting medical reasons when infants are bottle-fed.
As part of the Health Department's Latch On NYC initiative, the Post says hospitals will keep baby formula locked-up.
Mothers will not be denied synthetic formula, but will be told why breast feeding is beneficial and in many cases preferred.
Under the program, the paper says almost three-quarters of the city's hospitals will also get rid of formula-branded items like lanyards, mugs, and bags.