• RFC 1 - /Image processing classes
• RFC 2 - /Automatic memory reclamation
• RFC 3 - /User Interface Guidelines
• RFC 4 - /Icon Server
• RFC 5 - /MIME types
• RFC 6 - /Registrar server
• RFC 7 - /Keychain Service
• RFC 8 - /OS Suggestions
• RFC 9 - /File type guessing
• RFC 10 - /Shared Files management
• RFC 11 - /Preferences
• RFC 12 - /File System Layout
• RFC 13 - /Standard Icon Set
• RFC 14 - /Settings Class
• RFC 15 - /Data Types Codes
• RFC 16 - /libHTML
• RFC 17 - /Public Message Ports
• RFC 18 - /Document Translator
• RFC 19 - /Thread Wrapper Class
• RFC 20 - /Document based applications framework
• RFC 21 - /SyllableSecure (SylSec) (Formerly Access Control Lists [ACLs])
• RFC 22 - /Exceptions
• RFC 23 - /Localizable filenames
• RFC 24 - /Dead Keys
• RFC 25 - /Localization
• RFC 26 - /Advanced File System Features
• RFC 27 - /Widget Styles
• RFC 28 - /Translation API
• RFC 29 - /Toolbar
• RFC 30 - String Formatting