Not transcluded, but official (some are a mess atm though):

Capitalization Standard Spanish - official
Data Track Style - now official
Release Title Style - now official
Has Cover Art At Relationship Type/Whitelist
Has Score At Relationship Type/Whitelist
Has Lyrics At Relationship Type/Whitelist
Advanced Relationship Style
Editing Guideline
Don't Swap Names Between Tracks
Merge Misspelled Artists
Merge Rather Than Delete
What Defines A Unique Release
MusicBrainz Terminology - REALLY messy atm, only worth transcluding to get it on the table for the future
Don't Make Relationship Clusters
Same Artist With Different Names
Opera Track Style
Live Bootleg Style
Live Track Style
Non-Album Track
Release Attribute
Release Script
Release Country Style
Series Style Guideline
Special Purpose Label
Mix Terminology

Remove:

Jaikoz_MP3_Tag_Editor - Redirect to Jaikoz
Member_Of_Band_Relationship_Style - No longer exists (was decomissioned+deleted)
Release_Title - Redirect for Release Title Style
Untitled_Bootleg_Style - No longer a guideline
libmusicbrainz_Download - Redirect to libmusicbrainz
Track_Title - unofficial + proposal
Cover_Art_Sites - redirect for Has Cover Art At Relationship Type/Whitelist
Extra_Title_Information - redirect for Extra_Title_Information_Style
Capitalization Standard Swedish is only a proposal; it ought to not be on the transclusion table.
Capitalization Standard/Japanese Releases Clarification - unofficial