pertaining to delegates selected at caucus -
<snip>
Saturday 15 March 2008: Democratic Party County Conventions convene in each county. Each County Convention chooses the county's delegates to both Congressional District Conventions and the Iowa State Convention based on presidential preference.
A mandatory 15 percent threshold is required in order for a presidential contender to be viable. Delegates assigned to a non-viable candidate will realign themselves to another candidate.County Conventions choose both the county's delegates to the Democratic Party Convention of the Congressional District of which the county is a part as well as the county's delegates the Iowa State Democratic Convention; each presidential contender receives a number of the county's delegates to each respective Convention (District or State) in proportion to the number of county convention delegates supporting said candidate.
Saturday 26 April 2008: Democratic Party District Conventions convene in each congressional district to choose the district's delegates to the Democratic National Convention.
A mandatory 15 percent threshold is required in order for a presidential contender to be allocated National Convention delegates at the district level.29 district delegates are to be allocated proportionally to the number of district convention delegates supporting said candidate in each Congressional District:
CD 1: 6
CD 2: 7
CD 3: 6
CD 4: 6
CD 5: 4
Therefore, the very first time Democratic National Convention delegates from Iowa will be allocated to presidential contenders officially will be at these Saturday 26 April 2008 District Conventions!!
Saturday 14 June 2008: The Iowa State Democratic Convention convenes. The State Convention chooses 16 of the Iowa's Pledged delegates to the Democratic National Convention.
A mandatory 15 percent threshold is required in order for a presidential contender to be allocated National Convention delegates at the statewide level.16 delegates are to be allocated to presidential contenders based the support for the presidential contenders in the State Convention as a whole.
10 at-large National Convention delegates
6 Pledged PLEOs
The remaining 12 National Convention delegates consist of
11 Unpledged PLEO delegates:
6 Democratic National Committee members.
4 Members of Congress (1 Senator and 3 Representatives).
1 Governor.
0 Distinguished Party Leaders.
1 Unpledged "add-on" (selected at the state convention).
These 12 delegates and will go to the Democratic National Convention officially "Unpledged".
Only as of Saturday 14 June 2008 will ALL of Iowa's 57 Democratic National Convention delegates have been allocated: the estimates made re: delegate allocation as a result of the Iowa caucuses will likely not match the presidential preferences and pledges of the National Convention delegates as actually chosen because it is rather probable that the field of Democratic presidential contenders on Saturday 14 June 2008 will very well be quite different from the way that same field looked at the time the Iowa Precinct Caucuses had taken place way back in January! <snip>
emphasis added
http://www.thegreenpapers.com/P08/IA-D.phtml