The document describes a core shelter program developed by Rebuild Bohol Foundation to provide safe and resilient housing for families affected by a 7.2 magnitude earthquake in Bohol, Philippines. The program aims to construct simple but sturdy core shelters using local and sustainable materials like "amakan" walls that can withstand tropical storms and typhoons. Each 16 square meter shelter provides living and sleeping space for a family of five at a materials cost of 32,000 pesos. The document includes construction plans, bills of materials, cost estimates and qualifications for beneficiaries to participate.