The opinion of the court was delivered by: Royce C. Lamberth, United States District Judge
MEMORANDUM OPINION AND ORDER
Plaintiffs, a California non-profit and a California farmer, challenge how the Fish and Wildlife Service and the Department of Interior ("Interior") have regulated the Delta Smelt, a small fish whose primary habitat is a river delta in California. A similar lawsuit pends in the Eastern District of California. Before the court is Interior's motion  to transfer this case to the Eastern District of California. After consideration of the motion to transfer, the opposition,*fn1 reply, supplemental opposition, and supplemental reply thereto, the court will grant the motion to transfer.
The statute permitting transfer, 28 U.S.C. § 1404(a), states that "[f]or the convenience of parties and witnesses, in the interest of justice, a district court may transfer any civil action to any other district or division where it might have been brought." District courts have broad discretion to grant or deny parties' requests for transfer; however, that discretion is not untrammeled. In re Scott, 709 F.2d 717, 719 (D.C. Cir. 1992). The grant or denial must be "according to an individualized, case-by-case consideration of convenience and fairness." Stewart Org., Inc. v. Ricoh Corp., 487 U.S. 22 (1988) (internal quotations omitted). But even before a district court may exercise its discretion, the transfer statute requires the district court to ascertain whether the receiving court would be a place of proper venue. Id. at 720; Trout Unlimited v. Dep't of Agriculture, 944 F. Supp. 13, 16 (D.D.C. 1996).
In this case, there is no dispute that the District of Columbia, the present forum, and the Eastern District of California, Interior's requested forum, would both be proper venues for this case. See 1391(e)(1)-(3). Therefore, this court is left to consider the conveniences and interests of justice. Courts often use public and private interest factors to guide its consideration.
The private interest considerations include: (1) the plaintiffs' choice of forum, unless the balance of convenience is strongly in favor of the defendants; (2) the defendants' choice of forum; (3) whether the claim arose elsewhere; (4) the convenience of the parties; (5) the convenience of the witnesses, but only to the extent that the witnesses may actually be unavailable for trial in one of the fora; and (6) the ease of access to sources of proof. The public interest considerations include: (1) the transferee's familiarity with the governing laws; (2) the relative congestion of the calendars of the potential transferee and transferor courts; and (3) the local interest in deciding local controversies at home.
The Wilderness Soc. v. Babbitt, 104 F. Supp. 2d 10, 12 (D.D.C. 2000). Not included within these factors, but of great importance, is whether transfer will prevent duplicitous litigation. See e.g., Vencor Nusring Co. v. Shalala, 63 F. Supp. 2d 1, 6 (D.D.C. 1999). The Supreme Court has noted that: "To permit a situation in which two cases involving precisely the same issues are simultaneously pending in different District Courts leads to the wastefulness of time, energy and money that s 1404(a) was designed to prevent." Continental Grain Co. v. The FBL-585, 364 U.S. 19, 26 (1960).
Making reference to these factors, Interior argues that transfer is appropriate to the Eastern District of California because nearly identical litigation is pending in that district, the litigation concerns a natural resource located in that district, the plaintiff resides in that district, and many of the key Interior employees are located within that district. Plaintiffs maintain that D.C. should remain the site of this case, because a plaintiff's choice of forum deserves deference, the two cases are not identical enough*fn2 and D.C. Interior officials were involved in the acts being litigated, thus creating a legal dispute of national significance. Considering all the facts and factors, the court finds that transfer is proper.
On September 5, 2002, D.C. plaintiffs and California plaintiffs authored a joint notice-of-suit letter to Interior. On the same day, November 22, 2002, plaintiffs filed their respective suits in California and D.C. Plaintiffs in both suits challenge Interior's continued listing of the Delta Smelt as a threatened species. Both suits challenge Interior's recovery criteria and the results of Interior's five-year review*fn3 and involve apparently identical issues of law and fact. (Cal. Compl. at 10-12; D.C. Compl. at 12-16.; D.C. Supp. Compl.; Joint Status Conference Statement of May 23, 2005 in Civ. A. 02-6461 (OWW), at 2.) Currently, activity in the California case has been stayed pending resolution of the transfer motion before this court.
Allowing these two suits to proceed unconsolidated in separate districts would "lead to the wastefulness of time, energy and money that s 1404(a) was designed to prevent." Continental Grain Co., 364 U.S. at 26. Not only would discovery, motions practice, and trial be duplicated, but there would be a significant risk that this court and the California court would issue inconsistent orders subjecting Interior to inconsistent obligations. Such considerations weigh heavily in favor of transfer. See Vencor Nursing Ctrs., 63 F. Supp.2d at 6; Hawksbill Sea Turtle v. FEMA, 939 F. Supp. 1, 3 (D.D.C. 1996); 15 Charles A. Wright, Arthur R. Miller & E. Cooper, Federal Practice and Procedure § 3854 (noting that such considerations should be given "great weight" and that the interest of justice "may be decisive in ruling on a transfer motion even though the convenience of the parties and witnesses point in a different direction."); cf. Greater Yellowstone Coalition v. Bosworth, 180 F. Supp. 2d 124, 129-130 (D.D.C. 2001) (noting that a "pending related action in a transferee forum," if present, "could support a decision to transfer a case to that forum").
Ordinarily, plaintiff's choice of forum is accorded substantial deference in the venue analysis; however, "substantially less deference is warranted when the forum preferred by the plaintiff is not his home forum," Pyrocap Int'l Corp. v. Ford Motor Co., 259 F. Supp. 2d 92, 95 (D.D.C. 2003) (citing Gemological Inst. of Am., Inc. v. Thi-Dai Phan, 145 F. Supp. 2d 68, 71 (D.D.C. 2001); DeLoach v. Philip Morris Co., 132 F. Supp. 2d 22, 24 (D.D.C.2000)), and when the forum has "no factual nexus to the case." Hawksbill Sea Turtle, 939 F. Supp. at 3.
On one hand, plaintiffs have established a factual nexus to the District. They cite communications of an Assistant Secretary and a Deputy Assistant Secretary and other D.C.-based Interior officials that address Interior's handling of the Delta Smelt. This entitles plaintiff's forum choice to some deference. See e.g., Greater Yellowstone, 180 F. Supp. 2d at 128-29. On the other hand, plaintiffs are California residents who have sued in the District of Columbia even though "neither reside in, nor have any substantial connection to" the District. DeLoach, 132 F. Supp. 2d at 24; cf. Greater Yellowstone, 180 F. Supp. 2d at 129. On this basis, the level of deference owed to plaintiff's choice is substantially diminished. This lower level of deference is also supported by the fact that the Delta Smelt dispute relates to actions taken by Interior officials within the Eastern District of California and involves more closely the interests of Californians like plaintiffs than residents of D.C. Cf. Trout, 944 F. Supp. 17 (noting that defendants are more likely to win transfer when plaintiffs have substantial ties and where the subject matter of the lawsuit is connected to [the transferee district]).
According plaintiffs' forum choice a low level of deference, the court concludes that the plaintiffs' interest in continuing this litigation in their forum of choice, D.C., does not outweigh the important interest of justice to have a ...