To (1) allow municipalities to require that land use applicants pay the costs of any technical review of applications, (2) make several changes to the Zoning Enabling Act, (3) establish requirements for zoning regulations concerning accessory apartments, mixed-use developments and multifamily housing, (4) convene a working group to develop model design guidelines for buildings and context-appropriate streets, (5) require certain qualifications of certain land use officials, and (6) address the jurisdiction and capacities of certain sewage disposal systems.