10.2190/9TPV-6RMT-U5C9-68F1 9TPV6RMTU5C968F1 0 NEW YORK'S TRIBOROUGH DOCTRINE: UNILATERAL CHANGES IN THE TERMS AND CONDITIONS OF EMPLOYMENT DURING A CONTRACTUAL HIATUS IN THE PUBLIC SECTOR 20020509 20020509 20020509 20020509 http://baywood.metapress.com/link.asp?target=contribution&id=9TPV6RMTU5C968F1 4 MICHAEL T. BOYCE The New York Public Employment Relations Board's Triborough Doctrine provides generally that a public employer may not unilaterally change employees' terms and conditions of employment after contract has expired. This article guides the public employer through the doctrine and its exceptions by studying its development from its statutory background through its case history, with appropriate references to private sector precedents.