This Act establishes the legal framework for spatial and land-use planning in Lower Austria, defining concepts and principles for territorial development. It integrates environmental protection, public health, cultural preservation, and compliance with EU directives into planning processes. The Act regulates a hierarchy of planning instruments and zoning categories, alongside requirements for environmental assessment, public participation, and land-use restrictions. It further addresses sector-specific issues such as renewable energy zones, infrastructure, retail development, and high-risk industrial sites. It also governs implementation mechanisms including building regulations, land reallocation procedures, compensation, and accelerated planning processes. Implementation provisions cover procedures, institutional responsibilities, monitoring, enforcement, and transitional arrangements