This is paraphrased.
Inspections are quarterly.
You may slaughter up to 1000 chickens, ducks, pheasant, quail,etc, or up to 250 turkeys that you raise annually without needing this inspection. If slaughtering 1000 to 20,000 chickens, etc annually you need a NYS license. For more than 20,000 chickens you need USDA inspection. See Circular 925, Article 5-A of the Agriculture and Markets Law for specifics. You may deliver the animal to the slaughterhouse for the customer if you wish.