Work item approval during delivery at the component level

I tried that  I had 3 components in  the stream.   Two of the components and the stream belonged to the team area that the approval precondition was enabled.  the third component belonged to a different team team area but was still prompted for an approval when modifying this component

Sorry about this incorrect information. I mixed up the way permissions work and it's the stream owner that sets the advisors, not the component owner.

Is it possible to obtain the implementation details of the OOTB "Require Work Item Approval"  precondition. To  help develop a custom operations advisor  based on a modified version of the  precondition.
The modified version would require an approval only  if there are changeset(s)  in the delivery  being delivered  to component(s) that are not owned by the  same team area as the stream.

Hi Emeka,

http://rsjazz.wordpress.com/2012/11/01/restrict-delivery-of-changesets-to-workitem-types-advisordelivery-of-changesets-associated-to-wrong-work-item-types-advisor/ shows an advisor that handles delivery. That should give you a skeleton that you can get started with. You can learn about how to create these kind of extensions and get your development environment set up using https://jazz.net/library/article/1000 . 
Set up that way allows also to use the PDE (Eclipse Plugin Development Environment) to look into the SDK and find some of the code. In addition my blog has several other API examples that should allow you to figure if the work item has an approval.

Thanks that helps a lot