Town officials are updating North Reading’s predisaster mitigation plan, which was adopted by the Board of Selectmen in March 2006. As part of the process, officials are seeking public input and will be holding two hearings on the plan, starting this week. The first session is slated for Thursday, and the second one will be held on Aug. 29, both starting at 7 p.m. in Room 10 at Town Hall, 235 North St. The town is required under federal law to complete the plan update in order to receive mitigation funding from the Federal Emergency Management Agency. Hazard mitigation planning attempts to reduce or eliminate the long-term risk that natural hazards — such as hurricanes, winter storms, floods, and fires — pose to people and property. Strategies may include planning, policy, and regulation changes, infrastructure projects, and educational programs.