OPINION

ROSEMARY M. COLLYER, United States District Judge.

In this suit brought under the Administrative Procedure Act, 5 U.S.C. §§ 701 et seq., Plaintiffs seek to supplement the administrative record. The documents that Plaintiffs seek to include were not before, or considered by, the decision-makers when they made the final agency decisions challenged here. Further, the documents are not "adverse" to the agency. Thus, the motion will be denied.

I. FACTS

Three mailings by the Plaintiffs—Sears, Roebuck and Co.; Segerdahl Graphics, Inc.; and Aspen Marketing Services, LLC—resulted in three assessments by the U.S. Postal Service's Pricing Classification Service Center for revenue deficiencies. Plaintiffs mailed oblong folded self-mailers at a discounted automation rate. U.S. Postal Service (USPS) rules require such self-mailers to be sealed on the top and bottom edges with glue or adhesive tabs. Because Plaintiffs' pieces were sealed only at their corners, the Pricing Classification Service Center rendered three separate decisions, in June and September 2011, disqualifying them for the lower automation rate and assessing deficiencies totaling over $1.25 million. Plaintiffs filed this suit against USPS challenging the Pricing Center's decisions as both ultra vires and arbitrary and capricious under Administrative Procedure Act, 5 U.S.C. §§ 701 et seq. (APA). The parties have filed cross motions for summary judgment that are now fully briefed.

Plaintiffs now move to supplement the administrative record with three documents: (1) a November 21, 2011 letter from Plaintiffs' counsel to counsel for USPS; and (2) a December 7, 2011 response letter from USPS counsel to Plaintiffs' counsel; and (3) a May 12, 2010 Report of the USPS Office of Inspector General (OIG Report). See Mot. to Supplement [Dkt. 35], Exs. A-C [Dkts. 35-1-35-3]. The November 21, 2011 letter from Plaintiffs' attorney requested reconsideration of the three final agency decisions challenged in this suit, and the December 7, 2011 USPS letter is a response to the request for reconsideration. The OIG Report concerns an audit and investigation regarding the Postal Service's "Move Update Program," which requires bulk mailers to update their address lists with address changes of customers who have moved or face deficiency assessments. See OIG Report.

II. LEGAL STANDARD

The Administrative Procedure Act requires reviewing courts to "set aside agency action, findings, and conclusions found to be . . . arbitrary, capricious, abuse of discretion, or otherwise not in accordance with law." 5 U.S.C. § 706. In reviewing agency rulemakings, the APA requires courts to "review the whole record or those parts of it cited by a party." Id. "If a court is to review an agency's action fairly, it should have before it neither more nor less information than did the agency when it made its decision." Walter O. Boswell Mem'l Hosp. v. Heckler, 749 F.2d 788, 792 (D.C.Cir.1984). The "whole" administrative record consists of all materials directly or indirectly considered by agency decision-makers, including evidence contrary to the agency's position, not merely the materials that the agency relied on. Stainback v. Sec'y of Navy, 520 F.Supp.2d 181, 185-86 (D.D.C.2007). An "agency may not skew the record by excluding unfavorable information but must produce the full record that was before the agency at the time the decision was made." Blue Ocean Inst. v. Gutierrez, 503 F.Supp.2d 366, 369 (D.D.C.2007). On the other hand, an agency may exclude information that is not contained in the agency's files and "generally may exclude material that reflects internal deliberations." Fund for Animals v. Williams, 391 F.Supp.2d 191, 197 (D.D.C.2005).

"[A]n agency is entitled to a strong presumption of regularity that it properly designated the administrative record." Pacific Shores Subdivision. v. U.S. Army Corps of Eng'rs, 448 F.Supp.2d 1, 5 (D.D.C.2006). To ensure that the court reviews only the documents that were before the agency, the record should not be supplemented unless there are unusual circumstances. Dist. Hosp. Partners, L.P. v. Burwell, 786 F.3d 46, 55 (D.C.Cir.2015) (citing Am. Wildlands v. Kempthorne, 530 F.3d 991, 1002 (D.C.Cir. 2008)). Unusual circumstances exist where:

Kempthorne, 530 F.3d at 1002. To rebut the presumption of regularity, the party seeking supplementation must introduce evidence that the specific documents allegedly missing from the record were before the actual decision-makers. Banner Health v. Sebelius, 945 F.Supp.2d 1, 16-17 (D.D.C.2013) (citing Pacific Shores, 448 F.Supp.2d at 6).

III. ANALYSIS

Plaintiffs assert that the November 21, 2011 letter from Plaintiffs' counsel, the December 7, 2011 response, and the OIG Report should be added to the administrative record in this case because these documents "were before the USPS during the administrative proceedings and bear directly on the lawfulness of the deficiency claims against Plaintiffs." Mot. to Supplement at 1. This assertion has no factual support.

To rebut the presumption of regularity, Plaintiffs must show that the documents were before the actual decision-maker at the time it made the decision in question. See Banner Health, 945 F.Supp.2d at 16-17. The actual decision-maker here was the Pricing Center, and it made the relevant final agency decisions in June and September of 2011. The November 21, 2011 letter from Plaintiffs' counsel requested reconsideration of the final agency decisions at issue in this case, and the December 7, 2011 letter from USPS counsel was written in response. As can be seen from the date and subject matter of these letters, it is clear that they were not before the Pricing Center at the relevant time. The Pricing Center made the final decisions in June and September of 2011, and the letters between counsel are dated months later and concern reconsideration of the June and September decisions. Because the Court "should have before it neither more nor less information than did the agency when it made its decision," Boswell Mem'l Hosp., 749 F.2d at 792, these letters will not be made part of the record.

Similarly, the OIG Report was not before the actual decision-maker when the final agency decisions were made. While Plaintiffs allege that the USPS management was aware of the OIG Report, there is no evidence that the OIG Report was before the Pricing Center. The OIG Report was made public and posted on the USPS OIG website by May 13, 2010, see Resp. [Dkt. 37], Ex. A (Ass'n for Postal Commerce, PostCom, Postal News from May 2010, citing link at http://www. uspsoig.gov/), but there is no evidence that Plaintiffs brought the OIG Report to the attention of the Pricing Center before the final agency decisions were rendered.1 When a document was not submitted to the proper division of an agency, the D.C. Circuit has held that the document was not before the relevant decision-maker. See Linemaster Switch Corp. v. EPA, 938 F.2d 1299, 1305 (D.C.Cir.1991) (document was not submitted to the proper division of EPA). The Pricing Center is a discrete decision-making entity, and not the equivalent of USPS management. Moreover there is no evidence that the OIG Report was considered, directly or indirectly, by the Pricing Center. This would be expected, as the OIG Report does not concern the regulations regarding folded self-mailers. The Report deals only with the Move Update Program.

Plaintiffs argue further that even if the OIG Report was not before the Pricing Center, or considered by the Pricing Center, the Report should be made a part of the record because it is "adverse" to USPS and it was intentionally or negligently excluded from the record, citing Kent Cnty., Del. Levy Court v. EPA, 963 F.2d 391, 395-96 (D.C.Cir.1992). Kent is inapposite. In Kent, the Circuit required that the record be supplemented with documents from the agency's experts regarding the key question raised in the case. See Kent, 963 F.2d at 396. The D.C. Circuit recently emphasized that occasions when the record should be supplemented with material that was not before the agency are rare. CTS Corp. v. EPA, 759 F.3d 52, 63 (D.C.Cir. 2014). Kent dealt with an unusual circumstance where "the agency blatantly ignored a specific document that was readily available and directly on point." Midcoast Fishermen's Ass'n v. Gutierrez, 592 F.Supp.2d 40, 45 (D.D.C.2008) (discussing Kent). Here, the OIG Report is not "adverse" as it is not directly on point. Again, this case concerns a regulation regarding self-folded mailers and the OIG Report concerns the Move Update Program, an entirely different regulation.2

Because the OIG Report was not before the Pricing Center, was not considered by the Pricing Center, and was not an "adverse" document directly on point, the request to add the Report to the administrative record will be denied.

IV. CONCLUSION

For the foregoing reasons, Plaintiffs' motion to supplement the administrative record [Dkt. 35] will be denied. A memorializing Order accompanies this Opinion.