What is a draft section?

AP-42 sections designated as 'final' have completed the public comment 
process and all issues have been resolved. Sections designated as 'draft' 
reflect the fact that the comment period on these sections has passed, but 
not all issues have been resolved.  EPA might receive additional data or comments 
that would cause a re-evaluation of the available data and possibly open another 
comment period. Users are encouraged to use factors from finalized sections, if available ,
but may, at their discretion, decide that the draft emissions factors provide better estimates 
after reviewing the supporting documentation. 

9/2013
Measurement Policy Group
US EPA