Yes heres a link about same employer same employee-one LC allowed.
http://www.murthy.com/news/n_bpcapp.html
Posted Aug 19, 2005
Murthy.com
DOL's Recent Position on No Second Case Allowed
The issuance of BPC (Backlog Processing Centers) approvals has become even more important, in light of a new FAQ procedural announcement from the U.S. Department of Labor, released in the second week of August 2005. [See More PERM FAQs from DOL : August 2005, also a MurthyBulletin article from Aug 08, 2005.] Essentially,
the DOL announced that they will not certify more than one labor certification per foreign national, per sponsoring employer. Thus, while it is possible to have labor certifications pending with more than one employer, problems can arise from having more than one case filed through the same employer. The DOL clarified that it does not matter if the job offer is different; they look only at the fact that the employer and the employee are the same. This is a change from the long-standing past policy of allowing multiple filings as long as the job opportunities were different. There are also constitutional and due-process concerns over the legal validity of the DOL position, which contradicts the law and the fact that the more recently- filed case may contain the correct job duties of the person instead of a case filed three or four years ago.
What this means, in part, for one with a BPC case is that, if the employer re-files the case under PERM without withdrawing the BPC case, the approval of the PERM case will then likely cause a Notice of Findings (NOF) to be issued on the BPC case. Conversely, if a BPC case is approved, any case filed under PERM will be denied. The issue here goes back to priority dates. If there were not problems with availability of priority dates, any labor certification would clear the way for a green card filing. With priority dates being a big issue, however, the approval of a labor certification with a recent priority date can be quite different from having an approval with an earlier priority date.
Conclusion
We will continue to update MurthyDotCom and MurthyBulletin readers on the PERM and BPC approvals as we receive them here at The Law Office of Sheela Murthy. We know that many of our readers are anxious to see movement in the 340,000 cases sent to the BPCs for adjudication.