Mark, thanks for sharing this.
For clarification, the SC approval of the use of the more detailed CRS purpose codes was in March 2014 (the document’s url is misleading, and for some reason the paper doesn’t have a proper header - perhaps something the Secretariat could rectify? @JoniHillman ?).
It’s document 4c on the agenda of the March 2014 meeting: http://www.aidtransparency.net/governance/steering-committee/steering-committee-documents/2014-meetings