A formal public disclosure period is underway for Holbrook’s property revaluations for fiscal 2013, which began July 1. Residents can view proposed values at the Assessors’ Office Monday from 8 a.m. to 4 p.m. and at the Holbrook Public Library. After that, the public will have access to revaluation data through www.patriotproperties.com, principal assessor Gary Brennan said. To find the data, choose “Holbrook’’ from the drop-down menu under “Online Property Search.’’ The disclosure period is required before Holbrook can receive final certification of the values from the state Department of Revenue. Residents may register complaints with the Assessor’s Office about unusual problems – if, for example, a 10,000-square-foot property were listed at 10,000 acres – he said, but standard requests for tax abatements should not be made until third-quarter tax bills have gone out around Jan. 1.