HOWARD, Chief Judge.

JPMorgan Chase Bank, N.A. (hereinafter, "Chase") initiated this mandamus proceeding, asking the court to intervene in what essentially is a discovery dispute. Before the district court, Chase unsuccessfully argued that fifty-five pages of Chase records were shielded from production or use in the underlying putative class action per a provision of the Bank Secrecy Act, 31 U.S.C. § 5318(g) (hereinafter, "the Act"), and related regulations. As explained below, there are significant reasons to doubt that the Act and related regulations apply at all to the unique facts of this case. Moreover, even assuming that the Act and regulations apply and that the protections emanating therefrom extend as far as Chase suggests, the documents disputed here would not be shielded from discovery or use in litigation. Accordingly, Chase has not demonstrated a clear entitlement to the relief it seeks, and the petition for writ of mandamus will be denied.

I.

An abbreviated version of the relevant facts will suffice for current purposes. Through a convoluted course of events that need not be described here, counsel for the name plaintiffs in the underlying putative class action obtained a sizable collection of Chase records from the receiver. Counsel and the name plaintiffs wished to rely on the documents in order to pursue various claims sounding in fraud, deceit, and conversion against Chase. The name plaintiffs alleged that a customer had used his accounts with Chase and a predecessor bank acquired by Chase to operate a Ponzi scheme that the banks had failed to detect and stop. A dispute arose as to whether portions of the Chase records were shielded from discovery and litigation use under the Act and related regulations. The Director of the Litigation Division for the Office of the Comptroller of the Currency ("OCC") and the Financial Crimes Enforcement Network ("FinCEN") were notified of the dispute as required by 12 C.F.R. § 21.11(k)(1)(i). The OCC declined to intervene in the matter and expressed support for the district court's plan to conduct in camera review of the disputed documents. Both agencies declined to review the specific documents disputed in this case. The OCC eventually did file an amicus brief in the district court, offering a general overview of relevant legal principles but making clear that the documents at issue in this case had not been reviewed.

After much legal wrangling, a magistrate judge adjudicating the action by consent ultimately reviewed all the disputed documents in camera and concluded that the vast majority of the documents were not shielded by statute or regulation, leaving the name plaintiffs free to rely upon all but a small sliver of the Chase records in counsel's possession. The district court rejected Chase's request that the ruling be certified for review via interlocutory appeal. Chase then initiated this mandamus proceeding, asking the court to intervene by declaring that the Act and related regulations shield an additional fifty-five pages of records from evidentiary or other use in the putative class action.1 Seizing upon language from prior cases, Chase characterizes those fifty-five pages as "Evaluative Documents" and claims that the documents are protected because they were prepared for purposes of determining Chase's obligations under the Act and related regulations to report certain transactions to FinCEN. This court has conducted de novo review of those fifty-five pages in camera.

II.

A. Mandamus Standard

"A petitioner seeking mandamus must show both that there is a clear entitlement to the relief requested, and that irreparable harm will likely occur if the writ is withheld." In re Cargill, 66 F.3d 1256, 1260 (1st Cir.1995). The alleged error to which a petitioner points must be "palpable." In re Cambridge Literary Props., Ltd., 271 F.3d 348, 349 (1st Cir. 2001). "[I]t is well-established that an extraordinary writ, such as a ... writ of mandamus, may not be used as a substitute for an appeal and will not lie if an appeal is an available remedy." In re Urohealth Sys., Inc., 252 F.3d 504, 507 (1st Cir.2001). Analogizing to mandamus petitions centered on claims of attorney-client privilege, we assume without definitively deciding that there is no general bar to Chase's use of a mandamus petition to pursue the claim at bar. See Mohawk Indus., Inc. v. Carpenter, 558 U.S. 100, 114, 130 S.Ct. 599, 175 L.Ed.2d 458 (2009) ("We expect that the combination of standard postjudgment appeals, § 1292(b) appeals, mandamus, and contempt appeals will continue to provide adequate protection to litigants ordered to disclose materials purportedly subject to the attorney-client privilege.").

B. Relevant Legal Principles

Here, the "clear entitlement" prong of the mandamus standard requires careful consideration of the Act, related regulations, the limited body of caselaw applying those authorities, and the guidance offered by FinCEN and the OCC as the primary agencies charged with implementing the Act and related regulations. A general overview is in order. The relevant portion of the Act, 31 U.S.C. § 5318(g) — added in 1992 as part of the Annunzio-Wylie Act — requires financial institutions "to report any suspicious transaction relevant to a possible violation of law or regulation." Annunzio-Wylie Anti-Money Laundering Act, Pub.L. 102-550, 106 Stat. 3672 (1992). Key for current purposes, the Act also imposes limits as to whom financial institutions, government officials, and others may notify when a "suspicious transaction" has been reported. Id. § 5318(g)(2). No involved person, whether on the financial institution side or the government side, "may notify any person involved in the transaction that the transaction has been reported." Id. The statute also creates a "safe harbor" for reporting financial institutions, stating that reporting institutions and employees

Id. § 5318(g)(3).

Several pertinent regulations have been promulgated under the Act, including 12 C.F.R. § 21.11(k) from the OCC, which refers to a suspicious activity report as a "SAR" and dictates, inter alia, that "[a] SAR, and any information that would reveal the existence of a SAR, are confidential, and shall not be disclosed except as authorized in this paragraph."2 The regulation further specifies:

12 C.F.R. § 21.11(k)(1)(i). In addition to other limitations not relevant for current purposes, the regulation specifies that "[p]rovided that no person involved in any reported suspicious transaction is notified that the transaction has been reported," the regulation should "not be construed as prohibiting ... [t]he disclosure ... of ... [t]he underlying facts, transactions, and documents upon which a SAR is based." 12 C.F.R. § 21.11(k)(1)(ii)(A)(2).

Against this backdrop, a body of district court caselaw has emerged, examining the scope of the protections emanating from the Act and related regulations. District courts have extrapolated from the statute and regulations "an unqualified discovery and evidentiary privilege that ... cannot be waived." See, e.g., Whitney Nat. Bank v. Karam, 306 F.Supp.2d 678, 682 (S.D.Tex.2004) courts has been to define the universe of documents encompassed by this "privilege." See id. at 682-83. The Whitney court concluded that the universe of protected documents

Id. Other categories of documents are not shielded, including "documents produced in the ordinary course of business pertaining to the defendants' banking activities, transactions, and accounts" that do not suggest the existence of a SAR. Id. at 683.

That position is consistent with the regulation quoted above, and other courts have drawn similar distinctions between SARs and supporting documentation. See United States v. Holihan, 248 F.Supp.2d 179, 187 (W.D.N.Y.2003) ("[A]ny supporting documentation which would not reveal either the fact that an [sic] SAR was filed or its contents cannot be shielded from otherwise appropriate discovery based solely on its connection to an SAR."); see also Cotton v. PrivateBank & Trust Co., 235 F.Supp.2d 809, 815 (N.D.Ill.2002); Gregory v. Bank One Corp., Inc., 200 F.Supp.2d 1000, 1002 (S.D.Ind.2002); Weil v. Long Island Sav. Bank, 195 F.Supp.2d 383, 390 (E.D.N.Y.2001).

On the issue of scope, FinCEN has provided some guidance:

Confidentiality of Suspicious Activity Reports, 75 Fed.Reg. 75593, 75595 (Dec. 3, 2010) (footnotes omitted).3

The final paragraph of the FinCEN guidance, with its reference to "material prepared ... as part of [the financial institution's] process to detect and report suspicious activity," may seem ambiguous, but the cases cited in support of that paragraph are telling. See id. at n. 15. FinCEN cited, inter alia, the Whitney and Cotton decisions referenced above and characterized those cases as having to do with communications, draft SARs, or other materials protected because they suggested the existence or non-existence of a SAR. See id. (citing Whitney, 306 F.Supp.2d at 682; Cotton, 235 F.Supp.2d at 815).

Decisions post-dating the FinCEN guidance have tended to focus on whether implicated documents were created "in the ordinary course of business in monitoring unusual activity," as opposed to being documents "of an evaluative nature intended to comply with federal reporting requirements." See Wiand v. Wells Fargo Bank, N.A., 981 F.Supp.2d 1214, 1218 (M.D.Fla. 2013). Applying this dichotomy, the Wiand court declared the following types of records to be outside the scope of the Act and related regulations: "copies of transactional documents," "list[s] or description[s] of certain transactions," and "internal bank emails and reports" not "of an evaluative nature." Id.; see also In re Whitley, No. 10-10426C-7G, 2011 WL 6202895 at *4 (Bankr.M.D.N.C. Dec. 13, 2011) ("[A]lthough a bank may undertake an internal investigation in anticipation of filing a SAR, it is also a standard business practice for banks to investigate suspicious activity as a necessary and appropriate measure to protect the bank's interests, and the internal bank reports or memorandum generated by the bank regarding such an investigation are not protected by SAR privilege."); Freedman & Gersten, LLP v. Bank of Am., N.A., No. 09-5351, 2010 WL 5139874 at *3 (D.N.J. Dec. 8, 2010) ("[T]he Court finds good cause to permit the disclosure of supplemental discovery related to documents and facts pertaining to the suspicious activity at issue in this matter, which were created in the ordinary course of business.").

C. Application to This Case

As is likely clear by this point, the scope of the protections stemming from the Act and related regulations is an evolving area of the law. However, two distinct issues lead us to question whether those authorities apply to this case to any extent at all, and that certainly does not bode well for Chase in its quest to demonstrate "a clear entitlement" to mandamus relief, Cargill, 66 F.3d at 1260, or a "palpable" error, Cambridge Literary Props., 271 F.3d at 349. First, there is the question whether the Act and related regulations prevent disclosure by third parties like the name plaintiffs. As set out above, the Act itself expressly forbids disclosure only by reporting financial institutions and their officers and agents, and by government entities, officials, and agents on the receiving end of SARs. See 31 U.S.C. § 5318(g)(2). Indeed, each of the cases cited and discussed above involved a financial institution relying upon the Act to resist disclosure of a SAR and related documentation; none of the cases involved attempts to keep third parties from disclosing SARs. Also, the FinCEN guidance quoted above focuses on financial institutions and does not address in any way the issue of third-party applicability.

It is true that the regulations fleshing out the Act do begin with the broad proposition that SARs and documents speaking to their existence "are confidential, and shall not be disclosed except as authorized" by regulation. 12 C.F.R. § 21.11(k). However, the regulations proceed to enumerate a universe of individuals to whom the prohibition against disclosure applies that is functionally equivalent to that set out in the Act (i.e., financial institutions and their officers and agents, and government entities and their officials and agents). See id. Per the so-called "general/specific canon," the specific list of subject entities and individuals trumps any suggestion of a broader universe of individuals bound by the prohibition on disclosure. See RadLAX Gateway Hotel, LLC v. Amalgamated Bank, ___ U.S. ___, 132 S.Ct. 2065, 2071, 182 L.Ed.2d 967 (2012) ("`It is an old and familiar rule that, where there is, in the same statute, a particular enactment, and also a general one, which, in its most comprehensive sense, would include what is embraced in the former, the particular enactment must be operative, and the general enactment must be taken to affect only such cases within its general language as are not within the provisions of the particular enactment.'" (quoting United States v. Chase, 135 U.S. 255, 260, 10 S.Ct. 756, 34 L.Ed. 117 (1890))). Thus, it would appear that neither the Act nor the regulations restrict third parties — that is, parties on neither the financial-institution side nor the government side of a SAR exchange — from disclosing the existence or non-existence of a particular SAR.

That reading also would comport with general agency principles. The specific manner in which the disclosure prohibition is set out in the Act suggests an intent on the part of Congress to limit only disclosure by specific entities and individuals for the specific purposes of encouraging reporting by financial institutions and preserving investigatory latitude. See Maine Ass'n of Interdependent Neighborhoods v. Comm'r, Maine Dep't of Human Servs., 946 F.2d 4, 6 (1st Cir.1991) ("We first determine if Congress has spoken to the precise question at issue.... At this stage we look to the statute's language, history and purpose. If congressional intent is clear, we simply give effect to that intent.") (internal quotations and citation omitted); see also Ernst & Ernst v. Hochfelder, 425 U.S. 185, 213-14, 96 S.Ct. 1375, 47 L.Ed.2d 668 (1976) ("The rulemaking power granted to an administrative agency charged with the administration of a federal statute is not the power to make law. Rather, it is the power to adopt regulations to carry into effect the will of Congress as expressed by the statute.") (internal quotations omitted). Where Congress has spoken with specificity, an agency may not promulgate regulations that are "an attempted addition to the statute of something which is not there," even if the intent behind the attempted addition is consistent with the intent behind the authorizing statute. See United States v. Calamaro, 354 U.S. 351, 358-359, 77 S.Ct. 1138, 1 L.Ed.2d 1394 (1957) (holding that treasury regulation could not extend coverage of statute imposing occupational tax on those in the business of "receiving" wagers to so-called "pick-up men"). In sum, while resolution of this case does not require us to specifically demarcate the universe of individuals encompassed by the disclosure limitations, we conclude that Chase cannot satisfy the demanding mandamus standard where there is such uncertainty as to the applicability of the disclosure limitations to parties like the name plaintiffs.

Issues of scope to the side, there is a second concern causing us to question the very applicability of the disclosure limitations, and that concern stems from circumstances unique to this case. Both the Act and the regulations speak of "disclosure" of SARs and documents speaking to their existence. See 31 U.S.C. § 5318(g); 12 C.F.R. § 21.11(k). "`Dictionaries of the English language are a fundamental tool in ascertaining the plain meaning of terms used in statutes and regulations.'" Rhode Island Hosp. v. Leavitt, 548 F.3d 29, 35 (1st Cir.2008) (quoting United States v. Lachman, 387 F.3d 42, 51 (1st Cir.2004)). Webster's Dictionary defines "disclose" as "to expose to view" or "to make known or public." Merriam-Webster's Collegiate Dictionary 356 (11th ed.2012). It is undisputed among the parties that, through a series of events we need not limn, the SAR to which the relevant documents relate was placed into the public record via court filings in prior litigation and that electronic versions of the SAR reside on the internet. As such, even assuming applicability of the Act and regulations, it is doubtful that the name plaintiffs are even capable of exposing the SAR to view or making it known or public because, right or wrong, the SAR already has been exposed to view and has been made public by other actors.

The two issues just discussed lead us to question strongly the very applicability of the Act and regulations to this case and, standing alone, would lead us to conclude that Chase has not satisfied the demanding mandamus standard. However, we need not arrive at a definitive conclusion as to the reach of the Act and regulations at this time. Even assuming, arguendo, that the disclosure limitations apply in this case and constitute a "privilege" against disclosure of the same scope as prior precedent and agency guidance would suggest, the court would deny mandamus relief because in camera review of the documents at issue here reveals that the documents fall outside the scope of that so-called "privilege."

As conveyed above, both relevant agencies and some courts have suggested that the "privilege" extends, not just to the SAR itself and documents expressly stating the existence of a SAR, but also to documents that indirectly suggest the existence or nonexistence of a SAR. For current purposes, the court will assume the correctness of that position. Even so, Chase's claim of privilege would fail. First, the vast majority of the allegedly privileged documents in this case feature only lists and descriptions of transactions. As described previously, courts uniformly have concluded that such documents are not encompassed by the Act or the regulations but, instead, constitute "[t]he underlying facts, transactions, and documents upon which a SAR is based," which are expressly declared exempt from the confidentiality obligation at 12 C.F.R. § 21.11(k)(1)(ii)(A)(2).4 See, e.g., Wiand, 981 F.Supp.2d 1214, 1217-18 (finding to be unprotected "a list or description of certain transactions rather than copies of the transactional documents themselves"). That leaves the narrow sliver of the fifty-five pages featuring non-transactional information. Under the existing law and guidance previously described, the key query is whether any of those documents suggest, directly or indirectly, that a SAR was or was not filed. See, e.g., 75 Fed. Reg. 75593, 75595 n. 15 (citing Whitney, 306 F.Supp.2d at 682; Cotton, 235 F.Supp.2d at 815). Careful de novo in camera review of the documents reveals that none of them do.5 For example, none of the documents at issue constitute a draft SAR, and none of the documents reflect the decision-making process as to whether a SAR should be filed, the process of preparing a SAR, or an attempt to explain the content of a SAR post-filing. See Whitney, 306 F.Supp.2d at 682; Cotton, 235 F.Supp.2d at 815.

In arriving at this conclusion, the court declines Chase's invitation to view the "privilege" as extending to any document that might speak to the investigative methods of financial institutions. While FinCEN and the OCC have identified safeguarding of investigative methods as one goal of the confidentiality provisions, see 75 Fed.Reg. 75576, 75578(OCC); 75 Fed. Reg. 75593, 75595 (FinCEN), the Act and related regulations refer only to SARs and documents speaking to the existence of SARs. Chase's suggested approach would see the bulk of a financial institution's investigative file in a particular case shielded from discovery. Congress and/or the agencies certainly would have used broader, less specific language had that been their intent. Further, Chase's suggested approach, in many instances, would be inconsistent with the portions of the regulations specifically exempting from protection "[t]he underlying facts, transactions, and documents upon which a SAR is based," 12 C.F.R. § 21.11(k)(1)(ii)(A)(2), as well as with the body of caselaw described previously.6 Finally, it is worth noting that the documents in this case do not reveal a great deal about Chase's investigative methods that could not be guessed by the average would-be wrongdoer. Moreover, nothing in this opinion would prevent Chase from asking the district court to continue sealing any filed copies of the fifty-five pages or filings describing their content.7 It is entirely possible, then, that Chase will not be prejudiced to the extent suggested in its papers and that an appeal at the conclusion of district court proceedings would allow Chase a sufficient opportunity to pursue its claim of privilege. See Urohealth Sys., 252 F.3d at 507 ("[A] writ of mandamus[] may not be used as a substitute for an appeal and will not lie if an appeal is an available remedy.").8

D. Outstanding Motions

Two outstanding motions require attention. First, Chase filed a motion for sanctions against plaintiff-respondents, arguing that counsel on at least two occasions had failed to comply with orders placing certain documents under seal. In each instance, the non-compliance was remedied promptly, and counsel has accounted for any lapses. The motion for sanctions will be denied, though the court trusts that counsel will redouble his efforts to comply strictly with any orders placing documents under seal in this court and in the district court. Second, the parties have tendered a supplemental joint appendix and requested leave to file the same. The motion is granted, and, to the extent relevant, the documents in the tendered appendix have been considered.

III.

The petition for writ of mandamus is denied due to Chase's failure to demonstrate a clear entitlement to the relief sought. The motion for sanctions is denied, and the motion for leave to file a joint supplemental appendix is granted.