February 19, 2001 injury aggravated, accelerated, or combined with his preexisting condition to at least partially create the ultimate disability. See Metro. Stevedore Co. v. Crescent Wharf & Warehouse Co., 339 F.3d 1102, 1104-05 (9th Cir.2003), cert. denied, 543 U.S. 940, 125 S.Ct. 309, 160 L.Ed.2d 248 (2004). Accordingly, the Benefits Review Board properly upheld the ALJ’s determination that Centennial is the last responsible employer. 2. There was no abuse of discretion in denying Centennial’s motion to reopen the evidentiary record. Centennial’s new evidence of “collusion” on which the motion to reopen was based does not undermine the validity of the documentary and testimonial evidence on which the ALJ relied. Cf. E.P. Pawp Co. v. Director, 999 F.2d 1341, 1347 n. 1 (9th Cir.1993) (<HOLDING>). Neither does the new evidence establish that
holding that court reviews aljs decision for substantial evidence on the record as a whole including the new evidence submitted after the determination was made recognizing the aljs broad discretion to correct mistakes in the record recognizing that the district court is afforded broad discretion in ruling on motions for relief from judgment recognizing the district courts broad discretion to utilize civil procedures in a manner that is useful and equitable to the parties holding that district courts discretion is extremely broad