UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) May 3130, 2006

CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.,

on behalf of the

Credit Suisse Adjustable Rate Mortgage Trust 2006-2A

(Exact name of registrant as specified in its charter)

Delaware		333-130884-07[-]		13-3460894
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

Eleven Madison Avenue, New York, NY		10010
(Address of principal executive office)		(Zip Code)

Registrant's telephone number, including area code (212) 325-2000.

N/A (Former name or address, if changed since last report)

(Former name or address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

~~[ ]~~ o Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

~~[ ]~~ o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

~~[ ]~~ o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

~~[ ]~~ o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Information to be Included in the Report

~~Section~~Item 8 – .01. Other Events.

~~ITEM~~On 8or about May 31, 2006, Credit Suisse First Boston Mortgage Securities Corp.01 (the “Registrant”), as depositor for the Adjustable Rate Mortgage Trust 2006-2A, will issue Adjustable Rate Mortgage Trust 2006-2A, Mortgage Trust Certificates, including the classes of certificates described in the prospectus supplement, dated May 25, 2006 and offered pursuant to a Registration Statement on Form S-3 (File No. ~~Other~~333-130884) ~~Events~~filed by the Registrant with the Securities and Exchange Commission (the “Certificates”).

OnCopies ~~May~~of ~~31,~~the ~~2006,~~opinions ~~Credit~~of ~~Suisse~~Orrick, ~~First~~Herrington ~~Boston~~& ~~Mortgage~~Sutcliffe ~~Securities~~LLP ~~Corp.~~with ~~caused~~respect ~~the~~to ~~issuance~~legality ~~and sale~~ of the ~~Adjustable~~Certificates ~~Rate~~and ~~Mortgage~~with ~~Trust~~respect ~~2006-2A,~~to ~~Mortgage~~certain ~~Trust~~federal ~~Certificates,~~tax ~~Series 2006-2A~~matters, ~~pursuant~~together towith arelated ~~Trust~~consents ~~Agreement dated as~~ of ~~May 31~~Orrick, ~~2006,~~Herrington ~~among~~& ~~Credit~~Sutcliffe ~~Suisse~~LLP ~~First~~to ~~Boston~~the ~~Mortgage~~incorporation ~~Securities~~by ~~Corp.,~~reference asof ~~depositor,~~such ~~Wells~~opinions ~~Fargo~~as ~~Bank,~~exhibits ~~N.A.,~~to asthe ~~trust~~Registration ~~administrator~~Statement, ~~and~~are ~~U.S. Bank~~filed ~~National~~as ~~Association,~~Exhibits asto ~~trustee~~this Report.

Section 9 – Financial Statements and Exhibits

Item 9.01. Financial Statements, Pro Forma Financial Information and Exhibits.
	(a)	Not applicable

	(b)	Not applicable

	(c)	Exhibits: The following are filed as Exhibits to this Report:

ITEM 9.01 (c). Exhibits.

Exhibit
Number

5.1	Opinion of Orrick, Herrington & Sutcliffe LLP with respect to legality.

8.1	Opinion of Orrick, Herrington & Sutcliffe LLP with respect to certain tax matters.

23.1	Consent of Orrick, Herrington & Sutcliffe LLP (included in opinion filed as Exhibit 5.1).

23.2	Consent of Orrick, Herrington & Sutcliffe LLP (included in opinion filed as Exhibit 8.1).

~~(c) Exhibits (executed copies): The following execution copies of Exhibits to the Form S-3 Registration Statement of the Registrant are hereby filed:~~SIGNATURES

~~10.1~~Pursuant ~~Trust~~to ~~Agreement~~the ~~dated~~requirements as of ~~May~~the ~~31,~~Securities ~~2006,~~Exchange ~~among~~Act ~~Credit~~of ~~Suisse~~1934, ~~First~~as ~~Boston~~amended, ~~Mortgage~~the ~~Securities~~registrant ~~Corp.,~~has asduly ~~depositor,~~caused ~~Wells~~this ~~Fargo~~report ~~Bank,~~to ~~N.A.,~~be assigned ~~trust~~on ~~administrator~~its ~~and~~behalf ~~U.S.~~by ~~Bank~~the ~~National~~undersigned ~~Association,~~hereunto asduly ~~trustee~~authorized.

~~10.2 Assignment and Assumption Agreement, dated as of~~ Dated: May 3130, 2006~~, by and between Credit Suisse Securities (USA) LLC and Credit Suisse First Boston Mortgage Securities Corp.~~

~~SIGNATURES~~CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP. By: /s/ Kevin Steele Name: Kevin Steele Title: Vice President

~~Pursuant~~Exhibit ~~to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.~~Index

~~Dated: June~~Exhibit ~~15, 2006~~5.1

~~CREDIT~~Opinion ~~SUISSE~~of ~~FIRST~~Orrick, ~~BOSTON~~Herrington ~~MORTGAGE~~& ~~SECURITIES~~Sutcliffe ~~CORP~~LLP with respect to legality.

~~By: /s/~~Exhibit ~~Kevin Steele~~ 8.1

~~Name:~~Opinion ~~Kevin~~of ~~Steele~~Orrick, ~~Title:~~Herrington ~~Vice~~& ~~President~~Sutcliffe LLP with respect to certain tax matters.

Exhibit ~~Index~~23.1

~~Exhibit~~Consent ~~Number~~of ~~Description~~Orrick, Herrington & Sutcliffe LLP (included in opinion filed as Exhibit 5.1).

~~10.1~~Exhibit ~~Trust Agreement dated as of May 31, 2006, among Credit Suisse First Boston Mortgage Securities Corp~~23.~~, as depositor, Wells Fargo Bank, N.A., as trust administrator and U.S. Bank National Association, as trustee.~~2

~~10.2~~Consent ~~Assignment and Assumption Agreement, dated as~~ of ~~May 31~~Orrick, ~~2006,~~Herrington by& ~~and~~Sutcliffe ~~between~~LLP ~~Credit Suisse Securities~~ (~~USA)~~included ~~LLC~~in ~~and~~opinion ~~Credit~~filed ~~Suisse~~as ~~First~~Exhibit ~~Boston Mortgage Securities Corp~~8.1).

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