I think that at least two of you are confused. Probably more considering the incorrect info being spread on one side of the equation. The merger will result in one pilot group, one union (probably Teamsters) and two airline certificates. Just like Air Micronesia and Continental.
Belowmins,
The petitioning of single carrier status could be done by any of the parties - the company, Atlas Union or Polar's union. A moot point now with ALPA National's delivery of the merged seniority list. Thus no need to do it now.
Polar guys can send in their cards along with the Atlas guys now.
Get one at :
Atlas for Teamsters