New York Codes, Rules and Regulations
Title 1 - DEPARTMENT OF AGRICULTURE AND MARKETS
Chapter III - Plant Industry
Subchapter C - PREVENTION AND CONTROL OF DISEASE IN TREES AND PLANTS; INSECT PESTS; SALE OF FRUIT-BEARING TREES (ARTICLE 14, AGRICULTURE AND MARKETS LAW)
Part 140 - Control of The Plum Pox Virus (potyvirus Dideron Strain)
Section 140.5 - Conditions governing the propagation of regulated articles

(a) Regulated articles originating from or growing within the regulated area of the nursery stock regulated area shall not be used as a source of propagated material (either root stock, scion, budwood or seed).

(b) Regulated articles originating from or growing within Niagara County shall not be used as a source of propagated material (either root stock, scion, budwood or seed), except as allowed in subdivision (c) of this section.

(c) On-farm propagation of regulated articles for the purposes of fruit production shall only be allowed pursuant to a compliance agreement.