Charcoal and charcoal briquettes shall be sold by weight and each container in which charcoal or charcoal briquettes is sold or delivered in quantities of one hundred pounds or less shall be plainly and conspicuously marked to show the net quantity of the contents in letters and figures commensurate with the size of the container as shall be determined and fixed by the commissioner, and shall also bear the legend 'CAUTION--FOR INDOOR USE COOK ONLY IN PROPERLY VENTILATED AREAS', or a substantially similar legend as may be approved by the commissioner, in a size commensurate with the size of the container and so placed on the container as shall be determined and fixed by the commissioner. This section shall apply to the city of New York.
New York Legal Code