Wikipedia:WikiProject U.S. Roads/New York/Resources/Notes by county/Ontario

Relevant laws

 * 1921 ch. 18 (initial codification)
 * 1925 ch. 330 (complete recodification)
 * 1928 ch. 597 (authorized abandonments)
 * 1936 ch. 63 (complete recodification)
 * 1945 ch. 222
 * 1949 ch. 683
 * 1952 ch. 560
 * 1964 ch. 79
 * 1965 ch. 220
 * 1968 ch. 592 (complete recodification)
 * 1968 ch. 1071
 * 1996 ch. 426 (effective September 1, 1996; added an exchange)

Early abandonments
authorized by 1928 ch. 597:
 * 187 Bristol 0.93 (Bristol Road from NY 21 west to a point east of Hickox Road)
 * 333 Geneva-Canandaigua, part three 0.47 (Pre Emption Road and Washington Street from US 20/NY 5 north and east to Reed Street)