09:58 Jun 15, 2009 

Commas come in pairs when used in the way Gary suggests, so if one comes after "babies", there should be another after "flights". However, that would still be a very badly constructed sentence as "the roster" is too far from its qualifier "should be adjusted" and "mothers" are still separated by their babies from "working on international flights". It could still be read as the roster applying to the mothers whose young babies work on international flights.

01:57 Jun 15, 2009 

The CBA also stipulates that the roster for mothers of young babies, working on international flights should be adjusted to domestic flights out of the home base.

09:59 Jun 14, 2009 

The author should perhaps be advised that "mothers of young babies working on international flights" actually means that it is the young babies who work on the international flights! It should be reworded as "workers on international flights who are mothers of young babies" (one example of a number of possible rewordings).