Special Economic Zone land and built-up area requirements redefine eligibility, sector thresholds and developer and State facilitation obligations. The rules condition Board approval of SEZ proposals on prescribed minimum contiguous land or category-based built-up processing area thresholds differentiated by sector and location, require at least half the SEZ area for processing, impose developer equity and phased construction obligations with limited extension powers, and require State Governments to provide tax exemptions, utilities, delegated administrative powers, single-window clearances and an assessment of reserved or ecologically fragile status.