This HTML page provides information about the fire protection requirements for exit stairs in buildings with more than 3 stories. It covers fire resistance ratings for various components such as walls, fire door assemblies, door vision panels, and fire window assemblies, based on NFPA 101 standards. The page also includes references to relevant codes and standards for complete information on opening protectives. Please note that this content serves as a quick reference and should be supplemented by consulting NFPA or local codes for comprehensive details.