5 Parts That Constitute A Written Adverse Action

Here's what it says in Reg B section 1002.9(a):

(2) Content of notification when adverse action is taken. A notification given to an applicant when adverse action is taken shall be in writing and shall contain a statement of the action taken; the name and address of the creditor; a statement of the provisions of section 701(a) of the Act; the name and address of the Federal agency that administers compliance with respect to the creditor; and either:

• (i) A statement of specific reasons for the action taken; or
• (ii) A disclosure of the applicant's right to a statement of specific reasons within 30 days, if the statement is requested within 60 days of the creditor's notification. The disclosure shall include the name, address, and telephone number of the person or office from which the statement of reasons can be obtained. If the creditor chooses to provide the reasons orally, the creditor shall also disclose the applicant's right to have them confirmed in writing within 30 days of receiving the applicant's written request for confirmation.

Since that's five things, I'm guessing that's what you are looking for. Keep in mind though, that you may also have adverse action notification requirements under the Fair Credit Reporting Act. Many institutions use a combined notice to meet the requirements of both regulations. You can find the FCRA requirements in section 615 of the FCRA.