Internet Assigned Numbers Authority Security Label Format Selection Created 2015-04-27 Last Updated 2015-07-16 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registry included below * Security Label Format Selection Registry Security Label Format Selection Registry Registration Procedure(s) Specification Required Expert(s) Unassigned Reference [RFC7569] Available Formats [IMG] CSV Label Format Specifier Label Description Status Reference 0 Reserved 1-127 Reserved for Private Use 128-255 Reserved for Experimental Use 256 CIPSO (tag type #1) active [FIPS-188] 257 CALIPSO [RFC5570] active [RFC5570] 258 FLASK Security Context active [FLASK99] 259 IPSO active [RFC1108] 260-65535 Unassigned Licensing Terms