Not any official list by any measure, but this is a list that I submitted to a private forum some time ago, and it has not received too many corrections (and these corrections have been integrated). This was in the context of what CF does and does not need to be implemented in order to require 100% coverage in CFScript.
Badge Summary:
These are significant omissions:
<cfcollection> <cfexchangecalendar> <cfexchangeconnection> <cfexchangecontact> <cfexchangefilter> <cfexchangemail> <cfexchangetask> <cfexecute> <cfindex> <cfinvoke> (support for dynamic method names) <cflogin> <cfloginuser> <cflogout> <cfmodule> <cfoutput> (implementation of query looping with grouping) <cfparam> (fix the bug in that enforced requiredness doesn't work (ie: param name="foo";)) <cfsearch> <cfsetting> <cfwddx> <cfzip> <cfzipparam>
This is a reasonable case for these:
<cfassociate> <cfcache> <cfcontent> <cfflush> <cfhtmlhead> <cfheader> <cfntauthenticate> <cfprint> <cfschedule> <cfsharepoint>
These ... Im ambivalent:
<cfgridupdate> <cfinsert> <cfobjectcache> <cfregistry> <cfreport> <cfreportparam> <cftimer> <cfupdate>
We do not need these at all, I think:
<cfajaximport> <cfajaxproxy> <cfapplet> <cfcalendar> <cfchart> <cfchartdata> <cfchartseries> <cfcol> <cfdiv> <cfdocument> <cfdocumentitem> <cfdocumentsection> <cffileupload> <cfform> <cfformgroup> <cfformitem> <cfgraph> <cfgraphdata> <cfgrid> <cfgridcolumn> <cfgridrow> <cfinput> <cflayout> <cflayoutarea> <cfmap> <cfmapitem> <cfmediaplayer> <cfmenu> <cfmenuitem> <cfpod> <cfpresentation> <cfpresentationslide> <cfpresenter> <cfselect> <cfsilent> <cfslider> <cfsprydataset> <cftable> <cftextarea> <cftextinput> <cftooltip> <cftree> <cftreeitem> <cfwindow>
If there is something that you think should be included in CFScript, please raise the issue here - http://cfbugs.adobe.com/cfbugreport/flexbugui/cfbugtracker/main.html - and cross-reference to the number release here.
NTN.