Section 656.41 - Review of prevailing wage determinations(a)Review of NPC PWD. Any employer desiring review of a PWD made by a CO must make a request for such review within 30 days of the date from when the PWD was issued. The request for review must be sent to the director of the NPC that issued the PWD within 30 days of the date of the PWD; clearly identify the PWD from which review is sought; set forth the particular grounds for the request; and include all the materials pertaining to the PWD submitted to the NPC up to the date of the PWD received from the NPC.(b)Processing of request by NPC. Upon the receipt of a request for review, the NPC will review the employer's request and accompanying documentation, and add any material that may have been omitted by the employer, including any material the NPC sent the employer up to the date of the PWD.(c)Review on the record. The director will review the PWD solely on the basis upon which the PWD was made and, upon the request for review, may either affirm or modify the PWD.(d)Request for review by BALCA. Any employer desiring review of the director's determination must make a request for review by the BALCA within 30 days of the date of the Director's decision.(1) The request for review, statements, briefs, and other submissions of the parties and amicus curiae must contain only legal arguments and only such evidence that was within the record upon which the director made his/her affirmation of the PWD.(2) The request for review must be in writing and addressed to the director of the NPC making the determination. Upon receipt of a request for a review, the director will assemble an indexed appeal file in reverse chronological order, with the index on top followed by the most recent document.(3) The director will send the Appeal File to the Office of Administrative Law Judges, BALCA. The BALCA handles the appeals in accordance with §§ 656.26 and 656.27 . 73 FR 78069 , Dec. 19, 2008