Here’s a training document from New York Department of State about the Subdivision Review part of the review process. It relates to subdividing a big lot into smaller, individually owned lots.
From the website:
Subdivision of land is what drives growth and development in a community. This publication explores the many aspects of the statutory process of subdivision review in New York State, including provisions for infrastructure and open spaces within the subdivision, as well as the various options for subdivision design and the effects those design approaches have on the function of the subdivision and surrounding community.
There are lots of other documents here, related to local government, zoning, planning and land use, even storm water management.