The following additions are made to Table 509 of the IBC: Room or Area Separation and/or Protection Storage areas 1 over 1,000 square feet not in an S or F 1 hour or Automatic Sprinkler Protection Storage areas 1 over 2,500 square feet not in an S or F 1 hour and Automatic Sprinkler Protection New residential buildings with attached garages and carports where rooms or spaces store electric powered vehicles 2 hour fire barrier with 90 minute door and heat detector Note: 1 Storage areas include walk-in freezers and refrigerators. Electric energy storage systems shall comply with IFC, Section 1207, and NFPA 1. When there is a conflict the most stringent code shall apply. Electrochemical Energy Storage Systems with 15 kWh or more capacity, located within 100 feet of a residential, school, library or hospital area shall have a minimum 2-hour fire resistance rated exterior walls and ceilings with opening protectives and ventilation systems.