N.Y. Agriculture & Markets Law § 146-G
Any retailer who sells or offers for sale to consumers specialty fertilizer in which the available phosphate (P205) content is greater than 0.67 percent, shall:
(b) post in the location where phosphorus-containing specialty fertilizer is displayed a clearly visible sign which is at least eight and one-half inches by eleven inches in size and states that: "Phosphorus runoff poses a threat to water quality. Therefore, under New York law, phosphorus-containing fertilizer may only be applied to lawn or non-agricultural turf when: